Subpart W Basin and County Combinations
Breadcrumbs
Changed
| Basin Number and Name | County | 
|---|---|
| 100 - New England Province | ADDISON, VT (1) | 
| 
 | ANDROSCOGGIN, ME (1) | 
| 
 | AROOSTOOK, ME (3) | 
| 
 | BELKNAP, NH (1) | 
| 
 | BENNINGTON, VT (3) | 
| 
 | BERKSHIRE, MA (3) | 
| 
 | BRISTOL, MA (5) | 
| 
 | BRISTOL, RI (1) | 
| 
 | BRONX, NY (5) | 
| 
 | CALEDONIA, VT (5) | 
| 
 | CARROLL, NH (3) | 
| 
 | CHESHIRE, NH (5) | 
| 
 | CHITTENDEN, VT (7) | 
| 
 | COLUMBIA, NY (21) | 
| 
 | COOS, NH (7) | 
| 
 | CUMBERLAND, ME (5) | 
| 
 | DUTCHESS, NY (27) | 
| 
 | ESSEX, MA (9) | 
| 
 | ESSEX, VT (9) | 
| 
 | FAIRFIELD, CT (1) | 
| 
 | FRANKLIN, MA (11) | 
| 
 | FRANKLIN, ME (7) | 
| 
 | FRANKLIN, VT (11) | 
| 
 | GRAFTON, NH (9) | 
| 
 | GRAND ISLE, VT (13) | 
| 
 | HAMPDEN, MA (13) | 
| 
 | HAMPSHIRE, MA (15) | 
| 
 | HANCOCK, ME (9) | 
| 
 | HARTFORD, CT (3) | 
| 
 | HILLSBOROUGH, NH (11) | 
| 
 | KENNEBEC, ME (11) | 
| 
 | KENT, RI (3) | 
| 
 | KNOX, ME (13) | 
| 
 | LAMOILLE, VT (15) | 
| 
 | LINCOLN, ME (15) | 
| 
 | LITCHFIELD, CT (5) | 
| 
 | MERRIMACK, NH (13) | 
| 
 | MIDDLESEX, CT (7) | 
| 
 | MIDDLESEX, MA (17) | 
| 
 | NEW HAVEN, CT (9) | 
| 
 | NEW LONDON, CT (11) | 
| 
 | NEWPORT, RI (5) | 
| 
 | NORFOLK, MA (21) | 
| 
 | ORANGE, VT (17) | 
| 
 | ORLEANS, VT (19) | 
| 
 | OXFORD, ME (17) | 
| 
 | PENOBSCOT, ME (19) | 
| 
 | PISCATAQUIS, ME (21) | 
| 
 | PLYMOUTH, MA (23) | 
| 
 | PROVIDENCE, RI (7) | 
| 
 | PUTNAM, NY (79) | 
| 
 | RENSSELAER, NY (83) | 
| 
 | ROCKINGHAM, NH (15) | 
| 
 | ROCKLAND, NY (87) | 
| 
 | RUTLAND, VT (21) | 
| 
 | SAGADAHOC, ME (23) | 
| 
 | SOMERSET, ME (25) | 
| 
 | STRAFFORD, NH (17) | 
| 
 | SUFFOLK, MA (25) | 
| 
 | SULLIVAN, NH (19) | 
| 
 | TOLLAND, CT (13) | 
| 
 | WALDO, ME (27) | 
| 
 | WASHINGTON, ME (29) | 
| 
 | WASHINGTON, NY (115) | 
| 
 | WASHINGTON, RI (9) | 
| 
 | WASHINGTON, VT (23) | 
| 
 | WESTCHESTER, NY (119) | 
| 
 | WINDHAM, CT (15) | 
| 
 | WINDHAM, VT (25) | 
| 
 | WINDSOR, VT (27) | 
| 
 | WORCESTER, MA (27) | 
| 
 | YORK, ME (31) | 
| 110 - Adirondack Uplift | CLINTON, NY (19) | 
| 
 | ESSEX, NY (31) | 
| 
 | FRANKLIN, NY (33) | 
| 
 | FULTON, NY (35) | 
| 
 | HAMILTON, NY (41) | 
| 
 | HERKIMER, NY (43) | 
| 
 | ST LAWRENCE, NY (89) | 
| 
 | WARREN, NY (113) | 
| 120 - Atlantic Coast Basin | ACCOMACK, VA (1) | 
| 
 | AIKEN, SC (3) | 
| 
 | ALLENDALE, SC (5) | 
| 
 | ANNE ARUNDEL, MD (3) | 
| 
 | ANSON, NC (7) | 
| 
 | ARLINGTON, VA (13) | 
| 
 | ATLANTIC, NJ (1) | 
| 
 | BALTIMORE CITY, MD (510) | 
| 
 | BAMBERG, SC (9) | 
| 
 | BARNSTABLE, MA (1) | 
| 
 | BARNWELL, SC (11) | 
| 
 | BEAUFORT, NC (13) | 
| 
 | BEAUFORT, SC (13) | 
| 
 | BERKELEY, SC (15) | 
| 
 | BERTIE, NC (15) | 
| 
 | BLADEN, NC (17) | 
| 
 | BRUNSWICK, NC (19) | 
| 
 | BURLINGTON, NJ (5) | 
| 
 | CALHOUN, SC (17) | 
| 
 | CALVERT, MD (9) | 
| 
 | CAMDEN, NC (29) | 
| 
 | CAMDEN, NJ (7) | 
| 
 | CAPE MAY, NJ (9) | 
| 
 | CAROLINE, MD (11) | 
| 
 | CAROLINE, VA (33) | 
| 
 | CARTERET, NC (31) | 
| 
 | CECIL, MD (15) | 
| 
 | CHARLES CITY, VA (36) | 
| 
 | CHARLES, MD (17) | 
| 
 | CHARLESTON, SC (19) | 
| 
 | CHESAPEAKE CITY, VA (550) | 
| 
 | CHESTERFIELD, SC (25) | 
| 
 | CHOWAN, NC (41) | 
| 
 | CLARENDON, SC (27) | 
| 
 | COLLETON, SC (29) | 
| 
 | COLUMBUS, NC (47) | 
| 
 | CRAVEN, NC (49) | 
| 
 | CUMBERLAND, NC (51) | 
| 
 | CUMBERLAND, NJ (11) | 
| 
 | CURRITUCK, NC (53) | 
| 
 | DARE, NC (55) | 
| 
 | DARLINGTON, SC (31) | 
| 
 | DILLON, SC (33) | 
| 
 | DISTRICT OF COLUMBIA, DC (1) | 
| 
 | DORCHESTER, MD (19) | 
| 
 | DORCHESTER, SC (35) | 
| 
 | DUKES, MA (7) | 
| 
 | DUPLIN, NC (61) | 
| 
 | EDGECOMBE, NC (65) | 
| 
 | ESSEX, VA (57) | 
| 
 | FLORENCE, SC (41) | 
| 
 | GATES, NC (73) | 
| 
 | GEORGETOWN, SC (43) | 
| 
 | GLOUCESTER, NJ (15) | 
| 
 | GLOUCESTER, VA (73) | 
| 
 | GREENE, NC (79) | 
| 
 | HALIFAX, NC (83) | 
| 
 | HAMPTON CITY, VA (650) | 
| 
 | HAMPTON, SC (49) | 
| 
 | HANOVER, VA (85) | 
| 
 | HENRICO, VA (87) | 
| 
 | HERTFORD, NC (91) | 
| 
 | HOKE, NC (93) | 
| 
 | HOPEWELL CITY, VA (670) | 
| 
 | HORRY, SC (51) | 
| 
 | HYDE, NC (95) | 
| 
 | ISLE OF WIGHT, VA (93) | 
| 
 | JAMES CITY, VA (95) | 
| 
 | JASPER, SC (53) | 
| 
 | JONES, NC (103) | 
| 
 | KENT, DE (1) | 
| 
 | KENT, MD (29) | 
| 
 | KING AND QUEEN, VA (97) | 
| 
 | KING GEORGE, VA (99) | 
| 
 | KING WILLIAM, VA (101) | 
| 
 | KINGS, NY (47) | 
| 
 | LANCASTER, VA (103) | 
| 
 | LEE, SC (61) | 
| 
 | LENOIR, NC (107) | 
| 
 | LEXINGTON, SC (63) | 
| 
 | MARION, SC (67) | 
| 
 | MARLBORO, SC (69) | 
| 
 | MARTIN, NC (117) | 
| 
 | MATHEWS, VA (115) | 
| 
 | MIDDLESEX, VA (119) | 
| 
 | MONMOUTH, NJ (25) | 
| 
 | NANTUCKET, MA (19) | 
| 
 | NASSAU, NY (59) | 
| 
 | NEW CASTLE, DE (3) | 
| 
 | NEW HANOVER, NC (129) | 
| 
 | NEW KENT, VA (127) | 
| 
 | NEWPORT NEWS CITY, VA (700) | 
| 
 | NORFOLK CITY, VA (710) | 
| 
 | NORTHAMPTON, NC (131) | 
| 
 | NORTHAMPTON, VA (131) | 
| 
 | NORTHUMBERLAND, VA (133) | 
| 
 | OCEAN, NJ (29) | 
| 
 | ONSLOW, NC (133) | 
| 
 | ORANGEBURG, SC (75) | 
| 
 | PAMLICO, NC (137) | 
| 
 | PASQUOTANK, NC (139) | 
| 
 | PENDER, NC (141) | 
| 
 | PERQUIMANS, NC (143) | 
| 
 | PITT, NC (147) | 
| 
 | PORTSMOUTH CITY, VA (740) | 
| 
 | PRINCE GEORGE, VA (149) | 
| 
 | PRINCE GEORGES, MD (33) | 
| 
 | QUEEN ANNES, MD (35) | 
| 
 | QUEENS, NY (81) | 
| 
 | RICHLAND, SC (79) | 
| 
 | RICHMOND CITY, VA (760) | 
| 
 | RICHMOND, NC (153) | 
| 
 | RICHMOND, NY (85) | 
| 
 | RICHMOND, VA (159) | 
| 
 | ROBESON, NC (155) | 
| 
 | SALEM, NJ (33) | 
| 
 | SAMPSON, NC (163) | 
| 
 | SCOTLAND, NC (165) | 
| 
 | SOMERSET, MD (39) | 
| 
 | SOUTHAMPTON, VA (175) | 
| 
 | ST MARYS, MD (37) | 
| 
 | SUFFOLK CITY, VA (800) | 
| 
 | SUFFOLK, NY (103) | 
| 
 | SUMTER, SC (85) | 
| 
 | SURRY, VA (181) | 
| 
 | SUSSEX, DE (5) | 
| 
 | SUSSEX, VA (183) | 
| 
 | TALBOT, MD (41) | 
| 
 | TYRRELL, NC (177) | 
| 
 | VIRGINIA BEACH CITY, VA (810) | 
| 
 | WASHINGTON, NC (187) | 
| 
 | WAYNE, NC (191) | 
| 
 | WAYNESBORO CITY, VA (820) | 
| 
 | WESTMORELAND, VA (193) | 
| 
 | WICOMICO, MD (45) | 
| 
 | WILLIAMSBURG CITY, VA (830) | 
| 
 | WILLIAMSBURG, SC (89) | 
| 
 | WILSON, NC (195) | 
| 
 | WORCESTER, MD (47) | 
| 
 | YORK, VA (199) | 
| 130 - S.GA Sedimentary Prov | APPLING, GA (1) | 
| 
 | ATKINSON, GA (3) | 
| 
 | BACON, GA (5) | 
| 
 | BAKER, GA (7) | 
| 
 | BARBOUR, AL (5) | 
| 
 | BAY, FL (5) | 
| 
 | BEN HILL, GA (17) | 
| 
 | BERRIEN, GA (19) | 
| 
 | BIBB, GA (21) | 
| 
 | BLECKLEY, GA (23) | 
| 
 | BRANTLEY, GA (25) | 
| 
 | BROOKS, GA (27) | 
| 
 | BRYAN, GA (29) | 
| 
 | BULLOCH, GA (31) | 
| 
 | BURKE, GA (33) | 
| 
 | CALHOUN, FL (13) | 
| 
 | CALHOUN, GA (37) | 
| 
 | CAMDEN, GA (39) | 
| 
 | CANDLER, GA (43) | 
| 
 | CHARLTON, GA (49) | 
| 
 | CHATHAM, GA (51) | 
| 
 | CHATTAHOOCHEE, GA (53) | 
| 
 | CLAY, GA (61) | 
| 
 | CLINCH, GA (65) | 
| 
 | COFFEE, AL (31) | 
| 
 | COFFEE, GA (69) | 
| 
 | COLQUITT, GA (71) | 
| 
 | COOK, GA (75) | 
| 
 | CRAWFORD, GA (79) | 
| 
 | CRISP, GA (81) | 
| 
 | DALE, AL (45) | 
| 
 | DECATUR, GA (87) | 
| 
 | DODGE, GA (91) | 
| 
 | DOOLY, GA (93) | 
| 
 | DOUGHERTY, GA (95) | 
| 
 | EARLY, GA (99) | 
| 
 | ECHOLS, GA (101) | 
| 
 | EFFINGHAM, GA (103) | 
| 
 | EMANUEL, GA (107) | 
| 
 | EVANS, GA (109) | 
| 
 | FRANKLIN, FL (37) | 
| 
 | GADSDEN, FL (39) | 
| 
 | GENEVA, AL (61) | 
| 
 | GLASCOCK, GA (125) | 
| 
 | GLYNN, GA (127) | 
| 
 | GRADY, GA (131) | 
| 
 | GULF, FL (45) | 
| 
 | HENRY, AL (67) | 
| 
 | HOLMES, FL (59) | 
| 
 | HOUSTON, AL (69) | 
| 
 | HOUSTON, GA (153) | 
| 
 | IRWIN, GA (155) | 
| 
 | JACKSON, FL (63) | 
| 
 | JEFF DAVIS, GA (161) | 
| 
 | JEFFERSON, FL (65) | 
| 
 | JEFFERSON, GA (163) | 
| 
 | JENKINS, GA (165) | 
| 
 | JOHNSON, GA (167) | 
| 
 | LANIER, GA (173) | 
| 
 | LAURENS, GA (175) | 
| 
 | LEE, GA (177) | 
| 
 | LEON, FL (73) | 
| 
 | LIBERTY, FL (77) | 
| 
 | LIBERTY, GA (179) | 
| 
 | LONG, GA (183) | 
| 
 | LOWNDES, GA (185) | 
| 
 | MACON, GA (193) | 
| 
 | MARION, GA (197) | 
| 
 | MC INTOSH, GA (191) | 
| 
 | MILLER, GA (201) | 
| 
 | MITCHELL, GA (205) | 
| 
 | MONTGOMERY, GA (209) | 
| 
 | MUSCOGEE, GA (215) | 
| 
 | PEACH, GA (225) | 
| 
 | PIERCE, GA (229) | 
| 
 | PIKE, AL (109) | 
| 
 | PULASKI, GA (235) | 
| 
 | QUITMAN, GA (239) | 
| 
 | RANDOLPH, GA (243) | 
| 
 | RICHMOND, GA (245) | 
| 
 | RUSSELL, AL (113) | 
| 
 | SCHLEY, GA (249) | 
| 
 | SCREVEN, GA (251) | 
| 
 | SEMINOLE, GA (253) | 
| 
 | STEWART, GA (259) | 
| 
 | SUMTER, GA (261) | 
| 
 | TATTNALL, GA (267) | 
| 
 | TAYLOR, GA (269) | 
| 
 | TELFAIR, GA (271) | 
| 
 | TERRELL, GA (273) | 
| 
 | THOMAS, GA (275) | 
| 
 | TIFT, GA (277) | 
| 
 | TOOMBS, GA (279) | 
| 
 | TREUTLEN, GA (283) | 
| 
 | TURNER, GA (287) | 
| 
 | TWIGGS, GA (289) | 
| 
 | WAKULLA, FL (129) | 
| 
 | WARE, GA (299) | 
| 
 | WASHINGTON, FL (133) | 
| 
 | WASHINGTON, GA (303) | 
| 
 | WAYNE, GA (305) | 
| 
 | WEBSTER, GA (307) | 
| 
 | WHEELER, GA (309) | 
| 
 | WILCOX, GA (315) | 
| 
 | WILKINSON, GA (319) | 
| 
 | WORTH, GA (321) | 
| 140 - Florida Platform | ALACHUA, FL (1) | 
| 
 | BAKER, FL (3) | 
| 
 | BRADFORD, FL (7) | 
| 
 | BREVARD, FL (9) | 
| 
 | BROWARD, FL (11) | 
| 
 | CHARLOTTE, FL (15) | 
| 
 | CITRUS, FL (17) | 
| 
 | CLAY, FL (19) | 
| 
 | COLLIER, FL (21) | 
| 
 | COLUMBIA, FL (23) | 
| 
 | DADE, FL (25) | 
| 
 | DE SOTO, FL (27) | 
| 
 | DIXIE, FL (29) | 
| 
 | DUVAL, FL (31) | 
| 
 | FLAGLER, FL (35) | 
| 
 | GILCHRIST, FL (41) | 
| 
 | GLADES, FL (43) | 
| 
 | HAMILTON, FL (47) | 
| 
 | HARDEE, FL (49) | 
| 
 | HENDRY, FL (51) | 
| 
 | HERNANDO, FL (53) | 
| 
 | HIGHLANDS, FL (55) | 
| 
 | HILLSBOROUGH, FL (57) | 
| 
 | INDIAN RIVER, FL (61) | 
| 
 | LAFAYETTE, FL (67) | 
| 
 | LAKE, FL (69) | 
| 
 | LEE, FL (71) | 
| 
 | LEVY, FL (75) | 
| 
 | MADISON, FL (79) | 
| 
 | MANATEE, FL (81) | 
| 
 | MARION, FL (83) | 
| 
 | MARTIN, FL (85) | 
| 
 | MONROE, FL (87) | 
| 
 | NASSAU, FL (89) | 
| 
 | OKEECHOBEE, FL (93) | 
| 
 | ORANGE, FL (95) | 
| 
 | OSCEOLA, FL (97) | 
| 
 | PALM BEACH, FL (99) | 
| 
 | PASCO, FL (101) | 
| 
 | PINELLAS, FL (103) | 
| 
 | POLK, FL (105) | 
| 
 | PUTNAM, FL (107) | 
| 
 | SARASOTA, FL (115) | 
| 
 | SEMINOLE, FL (117) | 
| 
 | ST JOHNS, FL (109) | 
| 
 | ST LUCIE, FL (111) | 
| 
 | SUMTER, FL (119) | 
| 
 | SUWANNEE, FL (121) | 
| 
 | TAYLOR, FL (123) | 
| 
 | UNION, FL (125) | 
| 
 | VOLUSIA, FL (127) | 
| 150 - Piedmont-Blue Ridge Prov | ABBEVILLE, SC (1) | 
| 
 | ADAMS, PA (1) | 
| 
 | ALAMANCE, NC (1) | 
| 
 | ALBEMARLE, VA (3) | 
| 
 | ALEXANDER, NC (3) | 
| 
 | ALEXANDRIA CITY, VA (510) | 
| 
 | ALLEGHANY, NC (5) | 
| 
 | AMELIA, VA (7) | 
| 
 | AMHERST, VA (9) | 
| 
 | ANDERSON, SC (7) | 
| 
 | APPOMATTOX, VA (11) | 
| 
 | ASHE, NC (9) | 
| 
 | AVERY, NC (11) | 
| 
 | BALDWIN, GA (9) | 
| 
 | BALTIMORE, MD (5) | 
| 
 | BANKS, GA (11) | 
| 
 | BARROW, GA (13) | 
| 
 | BEDFORD, VA (19) | 
| 
 | BERGEN, NJ (3) | 
| 
 | BRUNSWICK, VA (25) | 
| 
 | BUCKINGHAM, VA (29) | 
| 
 | BUCKS, PA (17) | 
| 
 | BUNCOMBE, NC (21) | 
| 
 | BURKE, NC (23) | 
| 
 | BUTTS, GA (35) | 
| 
 | CABARRUS, NC (25) | 
| 
 | CALDWELL, NC (27) | 
| 
 | CAMPBELL, VA (31) | 
| 
 | CARROLL, GA (45) | 
| 
 | CARROLL, MD (13) | 
| 
 | CARROLL, VA (35) | 
| 
 | CARTER, TN (19) | 
| 
 | CASWELL, NC (33) | 
| 
 | CATAWBA, NC (35) | 
| 
 | CHAMBERS, AL (17) | 
| 
 | CHARLOTTE, VA (37) | 
| 
 | CHARLOTTESVILLE CITY, VA (540) | 
| 
 | CHATHAM, NC (37) | 
| 
 | CHEROKEE, GA (57) | 
| 
 | CHEROKEE, NC (39) | 
| 
 | CHEROKEE, SC (21) | 
| 
 | CHESTER, PA (29) | 
| 
 | CHESTER, SC (23) | 
| 
 | CHESTERFIELD, VA (41) | 
| 
 | CLARKE, GA (59) | 
| 
 | CLAY, AL (27) | 
| 
 | CLAY, NC (43) | 
| 
 | CLAYTON, GA (63) | 
| 
 | CLEBURNE, AL (29) | 
| 
 | CLEVELAND, NC (45) | 
| 
 | COBB, GA (67) | 
| 
 | COLONIAL HEIGHTS CITY, VA (570) | 
| 
 | COLUMBIA, GA (73) | 
| 
 | COOSA, AL (37) | 
| 
 | COWETA, GA (77) | 
| 
 | CULPEPER, VA (47) | 
| 
 | CUMBERLAND, VA (49) | 
| 
 | DANVILLE CITY, VA (590) | 
| 
 | DAVIDSON, NC (57) | 
| 
 | DAVIE, NC (59) | 
| 
 | DAWSON, GA (85) | 
| 
 | DE KALB, GA (89) | 
| 
 | DELAWARE, PA (45) | 
| 
 | DINWIDDIE, VA (53) | 
| 
 | DOUGLAS, GA (97) | 
| 
 | DURHAM, NC (63) | 
| 
 | EDGEFIELD, SC (37) | 
| 
 | ELBERT, GA (105) | 
| 
 | EMPORIA CITY, VA (595) | 
| 
 | ESSEX, NJ (13) | 
| 
 | FAIRFAX CITY, VA (600) | 
| 
 | FAIRFAX, VA (59) | 
| 
 | FAIRFIELD, SC (39) | 
| 
 | FALLS CHURCH CITY, VA (610) | 
| 
 | FANNIN, GA (111) | 
| 
 | FAUQUIER, VA (61) | 
| 
 | FAYETTE, GA (113) | 
| 
 | FLOYD, VA (63) | 
| 
 | FLUVANNA, VA (65) | 
| 
 | FORSYTH, GA (117) | 
| 
 | FORSYTH, NC (67) | 
| 
 | FRANKLIN, GA (119) | 
| 
 | FRANKLIN, NC (69) | 
| 
 | FRANKLIN, VA (67) | 
| 
 | FREDERICK, MD (21) | 
| 
 | FREDERICKSBURG CITY, VA (630) | 
| 
 | FULTON, GA (121) | 
| 
 | GALAX CITY, VA (640) | 
| 
 | GASTON, NC (71) | 
| 
 | GILMER, GA (123) | 
| 
 | GOOCHLAND, VA (75) | 
| 
 | GRAHAM, NC (75) | 
| 
 | GRANVILLE, NC (77) | 
| 
 | GRAYSON, VA (77) | 
| 
 | GREENE, GA (133) | 
| 
 | GREENE, VA (79) | 
| 
 | GREENSVILLE, VA (81) | 
| 
 | GREENVILLE, SC (45) | 
| 
 | GREENWOOD, SC (47) | 
| 
 | GUILFORD, NC (81) | 
| 
 | GWINNETT, GA (135) | 
| 
 | HABERSHAM, GA (137) | 
| 
 | HALIFAX, VA (83) | 
| 
 | HALL, GA (139) | 
| 
 | HANCOCK, GA (141) | 
| 
 | HARALSON, GA (143) | 
| 
 | HARFORD, MD (25) | 
| 
 | HARNETT, NC (85) | 
| 
 | HARRIS, GA (145) | 
| 
 | HART, GA (147) | 
| 
 | HAYWOOD, NC (87) | 
| 
 | HEARD, GA (149) | 
| 
 | HENDERSON, NC (89) | 
| 
 | HENRY, GA (151) | 
| 
 | HENRY, VA (89) | 
| 
 | HOWARD, MD (27) | 
| 
 | HUDSON, NJ (17) | 
| 
 | HUNTERDON, NJ (19) | 
| 
 | IREDELL, NC (97) | 
| 
 | JACKSON, GA (157) | 
| 
 | JACKSON, NC (99) | 
| 
 | JASPER, GA (159) | 
| 
 | JOHNSON, TN (91) | 
| 
 | JOHNSTON, NC (101) | 
| 
 | JONES, GA (169) | 
| 
 | KERSHAW, SC (55) | 
| 
 | LAMAR, GA (171) | 
| 
 | LANCASTER, PA (71) | 
| 
 | LANCASTER, SC (57) | 
| 
 | LAURENS, SC (59) | 
| 
 | LEE, AL (81) | 
| 
 | LEE, NC (105) | 
| 
 | LINCOLN, GA (181) | 
| 
 | LINCOLN, NC (109) | 
| 
 | LOUDOUN, VA (107) | 
| 
 | LOUISA, VA (109) | 
| 
 | LUMPKIN, GA (187) | 
| 
 | LUNENBURG, VA (111) | 
| 
 | LYNCHBURG CITY, VA (680) | 
| 
 | MACON, NC (113) | 
| 
 | MADISON, GA (195) | 
| 
 | MADISON, NC (115) | 
| 
 | MADISON, VA (113) | 
| 
 | MARTINSVILLE CITY, VA (690) | 
| 
 | MC CORMICK, SC (65) | 
| 
 | MC DOWELL, NC (111) | 
| 
 | MC DUFFIE, GA (189) | 
| 
 | MECKLENBURG, NC (119) | 
| 
 | MECKLENBURG, VA (117) | 
| 
 | MERCER, NJ (21) | 
| 
 | MERIWETHER, GA (199) | 
| 
 | MIDDLESEX, NJ (23) | 
| 
 | MITCHELL, NC (121) | 
| 
 | MONROE, GA (207) | 
| 
 | MONTGOMERY, MD (31) | 
| 
 | MONTGOMERY, NC (123) | 
| 
 | MONTGOMERY, PA (91) | 
| 
 | MOORE, NC (125) | 
| 
 | MORGAN, GA (211) | 
| 
 | MORRIS, NJ (27) | 
| 
 | NASH, NC (127) | 
| 
 | NELSON, VA (125) | 
| 
 | NEW YORK, NY (61) | 
| 
 | NEWBERRY, SC (71) | 
| 
 | NEWTON, GA (217) | 
| 
 | NOTTOWAY, VA (135) | 
| 
 | OCONEE, GA (219) | 
| 
 | OCONEE, SC (73) | 
| 
 | OGLETHORPE, GA (221) | 
| 
 | ORANGE, NC (135) | 
| 
 | ORANGE, VA (137) | 
| 
 | PASSAIC, NJ (31) | 
| 
 | PATRICK, VA (141) | 
| 
 | PAULDING, GA (223) | 
| 
 | PERSON, NC (145) | 
| 
 | PETERSBURG CITY, VA (730) | 
| 
 | PHILADELPHIA, PA (101) | 
| 
 | PICKENS, GA (227) | 
| 
 | PICKENS, SC (77) | 
| 
 | PIKE, GA (231) | 
| 
 | PITTSYLVANIA, VA (143) | 
| 
 | POLK, NC (149) | 
| 
 | POWHATAN, VA (145) | 
| 
 | PRINCE EDWARD, VA (147) | 
| 
 | PRINCE WILLIAM, VA (153) | 
| 
 | PUTNAM, GA (237) | 
| 
 | RABUN, GA (241) | 
| 
 | RANDOLPH, AL (111) | 
| 
 | RANDOLPH, NC (151) | 
| 
 | RAPPAHANNOCK, VA (157) | 
| 
 | ROCKDALE, GA (247) | 
| 
 | ROCKINGHAM, NC (157) | 
| 
 | ROWAN, NC (159) | 
| 
 | RUTHERFORD, NC (161) | 
| 
 | SALUDA, SC (81) | 
| 
 | SOMERSET, NJ (35) | 
| 
 | SOUTH BOSTON CITY, VA (780) | 
| 
 | SPALDING, GA (255) | 
| 
 | SPARTANBURG, SC (83) | 
| 
 | SPOTSYLVANIA, VA (177) | 
| 
 | STAFFORD, VA (179) | 
| 
 | STANLY, NC (167) | 
| 
 | STEPHENS, GA (257) | 
| 
 | STOKES, NC (169) | 
| 
 | SURRY, NC (171) | 
| 
 | SWAIN, NC (173) | 
| 
 | TALBOT, GA (263) | 
| 
 | TALIAFERRO, GA (265) | 
| 
 | TALLAPOOSA, AL (123) | 
| 
 | TOWNS, GA (281) | 
| 
 | TRANSYLVANIA, NC (175) | 
| 
 | TROUP, GA (285) | 
| 
 | UNION, GA (291) | 
| 
 | UNION, NC (179) | 
| 
 | UNION, NJ (39) | 
| 
 | UNION, SC (87) | 
| 
 | UPSON, GA (293) | 
| 
 | VANCE, NC (181) | 
| 
 | WAKE, NC (183) | 
| 
 | WALTON, GA (297) | 
| 
 | WARREN, GA (301) | 
| 
 | WARREN, NC (185) | 
| 
 | WATAUGA, NC (189) | 
| 
 | WHITE, GA (311) | 
| 
 | WILKES, GA (317) | 
| 
 | WILKES, NC (193) | 
| 
 | YADKIN, NC (197) | 
| 
 | YANCEY, NC (199) | 
| 
 | YORK, PA (133) | 
| 
 | YORK, SC (91) | 
| 160 - Appalachian Basin | ALBANY, NY (1) | 
| 
 | ASHLAND, OH (5) | 
| 
 | BOONE, WV (5) | 
| 
 | BROOME, NY (7) | 
| 
 | ASHTABULA, OH (7) | 
| 
 | BLEDSOE, TN (7) | 
| 
 | ATHENS, OH (9) | 
| 
 | CAYUGA, NY (11) | 
| 
 | CABELL, WV (11) | 
| 
 | CLAY, WV (15) | 
| 
 | CHENANGO, NY (17) | 
| 
 | BOYD, KY (19) | 
| 
 | FAYETTE, WV (19) | 
| 
 | CORTLAND, NY (23) | 
| 
 | BREATHITT, KY (25) | 
| 
 | DELAWARE, NY (25) | 
| 
 | ERIE, NY (29) | 
| 
 | COSHOCTON, OH (31) | 
| 
 | CRAWFORD, OH (33) | 
| 
 | CUYAHOGA, OH (35) | 
| 
 | CUMBERLAND, TN (35) | 
| 
 | JACKSON, WV (35) | 
| 
 | GENESEE, NY (37) | 
| 
 | GREENE, NY (39) | 
| 
 | CRAWFORD, PA (39) | 
| 
 | KANAWHA, WV (39) | 
| 
 | DELAWARE, OH (41) | 
| 
 | CARTER, KY (43) | 
| 
 | ERIE, OH (43) | 
| 
 | LINCOLN, WV (43) | 
| 
 | JEFFERSON, NY (45) | 
| 
 | FAIRFIELD, OH (45) | 
| 
 | LOGAN, WV (45) | 
| 
 | FAYETTE, OH (47) | 
| 
 | MC DOWELL, WV (47) | 
| 
 | LEWIS, NY (49) | 
| 
 | FRANKLIN, OH (49) | 
| 
 | ERIE, PA (49) | 
| 
 | FENTRESS, TN (49) | 
| 
 | CLAY, KY (51) | 
| 
 | LIVINGSTON, NY (51) | 
| 
 | FRANKLIN, TN (51) | 
| 
 | MADISON, NY (53) | 
| 
 | GALLIA, OH (53) | 
| 
 | MASON, WV (53) | 
| 
 | MONROE, NY (55) | 
| 
 | GEAUGA, OH (55) | 
| 
 | MONTGOMERY, NY (57) | 
| 
 | GUERNSEY, OH (59) | 
| 
 | MINGO, WV (59) | 
| 
 | GRUNDY, TN (61) | 
| 
 | ELLIOTT, KY (63) | 
| 
 | NIAGARA, NY (63) | 
| 
 | ESTILL, KY (65) | 
| 
 | ONEIDA, NY (65) | 
| 
 | ONONDAGA, NY (67) | 
| 
 | NICHOLAS, WV (67) | 
| 
 | ONTARIO, NY (69) | 
| 
 | FLOYD, KY (71) | 
| 
 | ORLEANS, NY (73) | 
| 
 | HOCKING, OH (73) | 
| 
 | OSWEGO, NY (75) | 
| 
 | HOLMES, OH (75) | 
| 
 | OTSEGO, NY (77) | 
| 
 | HURON, OH (77) | 
| 
 | JACKSON, OH (79) | 
| 
 | PUTNAM, WV (79) | 
| 
 | RALEIGH, WV (81) | 
| 
 | KNOX, OH (83) | 
| 
 | LAKE, OH (85) | 
| 
 | LAWRENCE, OH (87) | 
| 
 | ROANE, WV (87) | 
| 
 | GREENUP, KY (89) | 
| 
 | LICKING, OH (89) | 
| 
 | SARATOGA, NY (91) | 
| 
 | SCHENECTADY, NY (93) | 
| 
 | LORAIN, OH (93) | 
| 
 | SCHOHARIE, NY (95) | 
| 
 | MADISON, OH (97) | 
| 
 | SENECA, NY (99) | 
| 
 | WAYNE, WV (99) | 
| 
 | MARION, OH (101) | 
| 
 | MEDINA, OH (103) | 
| 
 | PIKE, PA (103) | 
| 
 | SULLIVAN, NY (105) | 
| 
 | MEIGS, OH (105) | 
| 
 | WOOD, WV (107) | 
| 
 | JACKSON, KY (109) | 
| 
 | WYOMING, WV (109) | 
| 
 | JOHNSON, KY (115) | 
| 
 | MORGAN, OH (115) | 
| 
 | MARION, TN (115) | 
| 
 | WAYNE, NY (117) | 
| 
 | MORROW, OH (117) | 
| 
 | KNOTT, KY (119) | 
| 
 | MUSKINGUM, OH (119) | 
| 
 | KNOX, KY (121) | 
| 
 | WYOMING, NY (121) | 
| 
 | NOBLE, OH (121) | 
| 
 | LAUREL, KY (125) | 
| 
 | LAWRENCE, KY (127) | 
| 
 | PERRY, OH (127) | 
| 
 | WAYNE, PA (127) | 
| 
 | LEE, KY (129) | 
| 
 | PICKAWAY, OH (129) | 
| 
 | MORGAN, TN (129) | 
| 
 | LESLIE, KY (131) | 
| 
 | PIKE, OH (131) | 
| 
 | PORTAGE, OH (133) | 
| 
 | LEWIS, KY (135) | 
| 
 | RICHLAND, OH (139) | 
| 
 | ROSS, OH (141) | 
| 
 | SCIOTO, OH (145) | 
| 
 | MC CREARY, KY (147) | 
| 
 | STARK, OH (151) | 
| 
 | SCOTT, TN (151) | 
| 
 | MAGOFFIN, KY (153) | 
| 
 | SUMMIT, OH (153) | 
| 
 | SEQUATCHIE, TN (153) | 
| 
 | TRUMBULL, OH (155) | 
| 
 | TUSCARAWAS, OH (157) | 
| 
 | MARTIN, KY (159) | 
| 
 | UNION, OH (159) | 
| 
 | VINTON, OH (163) | 
| 
 | MENIFEE, KY (165) | 
| 
 | WAYNE, OH (169) | 
| 
 | MORGAN, KY (175) | 
| 
 | VAN BUREN, TN (175) | 
| 
 | WHITE, TN (185) | 
| 
 | OWSLEY, KY (189) | 
| 
 | PERRY, KY (193) | 
| 
 | PIKE, KY (195) | 
| 
 | POWELL, KY (197) | 
| 
 | ROCKCASTLE, KY (203) | 
| 
 | ROWAN, KY (205) | 
| 
 | WHITLEY, KY (235) | 
| 
 | WOLFE, KY (237) | 
| 
 | BRISTOL CITY, VA (520) | 
| 
 | BUENA VISTA CITY, VA (530) | 
| 
 | CLIFTON FORGE CITY, VA (560) | 
| 
 | COVINGTON CITY, VA (580) | 
| 
 | HARRISONBURG CITY, VA (660) | 
| 
 | NORTON CITY, VA (720) | 
| 
 | RADFORD CITY, VA (750) | 
| 
 | STAUNTON CITY, VA (790) | 
| 
 | WINCHESTER CITY, VA (840) | 
| 160A - Appalachian Basin (Eastern Overthrust Area) | ALLEGANY, MD (1) | 
| 
 | ANDERSON, TN (1) | 
| 
 | BARBOUR, WV (1) | 
| 
 | ALLEGANY, NY (3) | 
| 
 | ALLEGHENY, PA (3) | 
| 
 | BERKELEY, WV (3) | 
| 
 | ARMSTRONG, PA (5) | 
| 
 | ALLEGHANY, VA (5) | 
| 
 | BIBB, AL (7) | 
| 
 | BEAVER, PA (7) | 
| 
 | BRAXTON, WV (7) | 
| 
 | BLOUNT, AL (9) | 
| 
 | CATTARAUGUS, NY (9) | 
| 
 | BEDFORD, PA (9) | 
| 
 | BLOUNT, TN (9) | 
| 
 | BROOKE, WV (9) | 
| 
 | BERKS, PA (11) | 
| 
 | BRADLEY, TN (11) | 
| 
 | BELL, KY (13) | 
| 
 | CHAUTAUQUA, NY (13) | 
| 
 | BELMONT, OH (13) | 
| 
 | BLAIR, PA (13) | 
| 
 | CAMPBELL, TN (13) | 
| 
 | CALHOUN, WV (13) | 
| 
 | CALHOUN, AL (15) | 
| 
 | BARTOW, GA (15) | 
| 
 | CHEMUNG, NY (15) | 
| 
 | BRADFORD, PA (15) | 
| 
 | AUGUSTA, VA (15) | 
| 
 | BATH, VA (17) | 
| 
 | DODDRIDGE, WV (17) | 
| 
 | CHEROKEE, AL (19) | 
| 
 | CARROLL, OH (19) | 
| 
 | BUTLER, PA (19) | 
| 
 | CAMBRIA, PA (21) | 
| 
 | BLAND, VA (21) | 
| 
 | GILMER, WV (21) | 
| 
 | GARRETT, MD (23) | 
| 
 | CAMERON, PA (23) | 
| 
 | BOTETOURT, VA (23) | 
| 
 | GRANT, WV (23) | 
| 
 | CARBON, PA (25) | 
| 
 | CLAIBORNE, TN (25) | 
| 
 | GREENBRIER, WV (25) | 
| 
 | CENTRE, PA (27) | 
| 
 | BUCHANAN, VA (27) | 
| 
 | HAMPSHIRE, WV (27) | 
| 
 | COLUMBIANA, OH (29) | 
| 
 | COCKE, TN (29) | 
| 
 | HANCOCK, WV (29) | 
| 
 | CLARION, PA (31) | 
| 
 | HARDY, WV (31) | 
| 
 | CLEARFIELD, PA (33) | 
| 
 | HARRISON, WV (33) | 
| 
 | CLINTON, PA (35) | 
| 
 | SUSSEX, NJ (37) | 
| 
 | COLUMBIA, PA (37) | 
| 
 | JEFFERSON, WV (37) | 
| 
 | WARREN, NJ (41) | 
| 
 | CUMBERLAND, PA (41) | 
| 
 | LEWIS, WV (41) | 
| 
 | WASHINGTON, MD (43) | 
| 
 | DAUPHIN, PA (43) | 
| 
 | CLARKE, VA (43) | 
| 
 | CRAIG, VA (45) | 
| 
 | CATOOSA, GA (47) | 
| 
 | ELK, PA (47) | 
| 
 | DE KALB, AL (49) | 
| 
 | MARION, WV (49) | 
| 
 | FAYETTE, PA (51) | 
| 
 | DICKENSON, VA (51) | 
| 
 | MARSHALL, WV (51) | 
| 
 | FOREST, PA (53) | 
| 
 | ETOWAH, AL (55) | 
| 
 | CHATTOOGA, GA (55) | 
| 
 | FRANKLIN, PA (55) | 
| 
 | MERCER, WV (55) | 
| 
 | FULTON, PA (57) | 
| 
 | GRAINGER, TN (57) | 
| 
 | MINERAL, WV (57) | 
| 
 | GREENE, PA (59) | 
| 
 | GREENE, TN (59) | 
| 
 | HUNTINGDON, PA (61) | 
| 
 | MONONGALIA, WV (61) | 
| 
 | INDIANA, PA (63) | 
| 
 | HAMBLEN, TN (63) | 
| 
 | MONROE, WV (63) | 
| 
 | JEFFERSON, PA (65) | 
| 
 | HAMILTON, TN (65) | 
| 
 | MORGAN, WV (65) | 
| 
 | HARRISON, OH (67) | 
| 
 | JUNIATA, PA (67) | 
| 
 | HANCOCK, TN (67) | 
| 
 | LACKAWANNA, PA (69) | 
| 
 | FREDERICK, VA (69) | 
| 
 | OHIO, WV (69) | 
| 
 | JACKSON, AL (71) | 
| 
 | ORANGE, NY (71) | 
| 
 | GILES, VA (71) | 
| 
 | PENDLETON, WV (71) | 
| 
 | JEFFERSON, AL (73) | 
| 
 | LAWRENCE, PA (73) | 
| 
 | HAWKINS, TN (73) | 
| 
 | PLEASANTS, WV (73) | 
| 
 | LEBANON, PA (75) | 
| 
 | POCAHONTAS, WV (75) | 
| 
 | LEHIGH, PA (77) | 
| 
 | PRESTON, WV (77) | 
| 
 | LUZERNE, PA (79) | 
| 
 | JEFFERSON, OH (81) | 
| 
 | LYCOMING, PA (81) | 
| 
 | DADE, GA (83) | 
| 
 | MC KEAN, PA (83) | 
| 
 | RANDOLPH, WV (83) | 
| 
 | MERCER, PA (85) | 
| 
 | RITCHIE, WV (85) | 
| 
 | MIFFLIN, PA (87) | 
| 
 | MADISON, AL (89) | 
| 
 | MONROE, PA (89) | 
| 
 | JEFFERSON, TN (89) | 
| 
 | SUMMERS, WV (89) | 
| 
 | HIGHLAND, VA (91) | 
| 
 | TAYLOR, WV (91) | 
| 
 | MONTOUR, PA (93) | 
| 
 | KNOX, TN (93) | 
| 
 | TUCKER, WV (93) | 
| 
 | HARLAN, KY (95) | 
| 
 | MARSHALL, AL (95) | 
| 
 | NORTHAMPTON, PA (95) | 
| 
 | TYLER, WV (95) | 
| 
 | SCHUYLER, NY (97) | 
| 
 | NORTHUMBERLAND, PA (97) | 
| 
 | UPSHUR, WV (97) | 
| 
 | MAHONING, OH (99) | 
| 
 | PERRY, PA (99) | 
| 
 | STEUBEN, NY (101) | 
| 
 | WEBSTER, WV (101) | 
| 
 | WETZEL, WV (103) | 
| 
 | POTTER, PA (105) | 
| 
 | LOUDON, TN (105) | 
| 
 | LEE, VA (105) | 
| 
 | WIRT, WV (105) | 
| 
 | TIOGA, NY (107) | 
| 
 | SCHUYLKILL, PA (107) | 
| 
 | MC MINN, TN (107) | 
| 
 | TOMPKINS, NY (109) | 
| 
 | SNYDER, PA (109) | 
| 
 | ULSTER, NY (111) | 
| 
 | MONROE, OH (111) | 
| 
 | SOMERSET, PA (111) | 
| 
 | SULLIVAN, PA (113) | 
| 
 | ST CLAIR, AL (115) | 
| 
 | FLOYD, GA (115) | 
| 
 | SUSQUEHANNA, PA (115) | 
| 
 | SHELBY, AL (117) | 
| 
 | TIOGA, PA (117) | 
| 
 | UNION, PA (119) | 
| 
 | TALLADEGA, AL (121) | 
| 
 | VENANGO, PA (121) | 
| 
 | MEIGS, TN (121) | 
| 
 | MONTGOMERY, VA (121) | 
| 
 | YATES, NY (123) | 
| 
 | WARREN, PA (123) | 
| 
 | MONROE, TN (123) | 
| 
 | WASHINGTON, PA (125) | 
| 
 | GORDON, GA (129) | 
| 
 | WESTMORELAND, PA (129) | 
| 
 | WYOMING, PA (131) | 
| 
 | LETCHER, KY (133) | 
| 
 | POLK, TN (139) | 
| 
 | PAGE, VA (139) | 
| 
 | RHEA, TN (143) | 
| 
 | ROANE, TN (145) | 
| 
 | SEVIER, TN (155) | 
| 
 | PULASKI, VA (155) | 
| 
 | ROANOKE, VA (161) | 
| 
 | SULLIVAN, TN (163) | 
| 
 | ROCKBRIDGE, VA (163) | 
| 
 | ROCKINGHAM, VA (165) | 
| 
 | WASHINGTON, OH (167) | 
| 
 | RUSSELL, VA (167) | 
| 
 | SCOTT, VA (169) | 
| 
 | UNICOI, TN (171) | 
| 
 | SHENANDOAH, VA (171) | 
| 
 | UNION, TN (173) | 
| 
 | SMYTH, VA (173) | 
| 
 | WASHINGTON, TN (179) | 
| 
 | TAZEWELL, VA (185) | 
| 
 | WARREN, VA (187) | 
| 
 | WASHINGTON, VA (191) | 
| 
 | WISE, VA (195) | 
| 
 | WYTHE, VA (197) | 
| 
 | MURRAY, GA (213) | 
| 
 | POLK, GA (233) | 
| 
 | WALKER, GA (295) | 
| 
 | WHITFIELD, GA (313) | 
| 
 | ROANOKE CITY, VA (770) | 
| 200 - Black Warrior Basin | CALHOUN, MS (13) | 
| 
 | CHICKASAW, MS (17) | 
| 
 | CHOCTAW, MS (19) | 
| 
 | CLAY, MS (25) | 
| 
 | COLBERT, AL (33) | 
| 
 | CULLMAN, AL (43) | 
| 
 | FAYETTE, AL (57) | 
| 
 | FRANKLIN, AL (59) | 
| 
 | GREENE, AL (63) | 
| 
 | GRENADA, MS (43) | 
| 
 | ITAWAMBA, MS (57) | 
| 
 | KEMPER, MS (69) | 
| 
 | LAFAYETTE, MS (71) | 
| 
 | LAMAR, AL (75) | 
| 
 | LAWRENCE, AL (79) | 
| 
 | LEE, MS (81) | 
| 
 | LOWNDES, MS (87) | 
| 
 | MARION, AL (93) | 
| 
 | MONROE, MS (95) | 
| 
 | MORGAN, AL (103) | 
| 
 | NOXUBEE, MS (103) | 
| 
 | OKTIBBEHA, MS (105) | 
| 
 | PANOLA, MS (107) | 
| 
 | PICKENS, AL (107) | 
| 
 | PONTOTOC, MS (115) | 
| 
 | PRENTISS, MS (117) | 
| 
 | QUITMAN, MS (119) | 
| 
 | SUMTER, AL (119) | 
| 
 | TALLAHATCHIE, MS (135) | 
| 
 | TISHOMINGO, MS (141) | 
| 
 | TUSCALOOSA, AL (125) | 
| 
 | UNION, MS (145) | 
| 
 | WALKER, AL (127) | 
| 
 | WEBSTER, MS (155) | 
| 
 | WINSTON, AL (133) | 
| 
 | WINSTON, MS (159) | 
| 
 | YALOBUSHA, MS (161) | 
| 210 - Mid-Gulf Coast Basin | ADAMS, MS (1) | 
| 
 | AMITE, MS (5) | 
| 
 | ATTALA, MS (7) | 
| 
 | AUTAUGA, AL (1) | 
| 
 | BALDWIN, AL (3) | 
| 
 | BULLOCK, AL (11) | 
| 
 | BUTLER, AL (13) | 
| 
 | CARROLL, MS (15) | 
| 
 | CHILTON, AL (21) | 
| 
 | CHOCTAW, AL (23) | 
| 
 | CLAIBORNE, MS (21) | 
| 
 | CLARKE, AL (25) | 
| 
 | CLARKE, MS (23) | 
| 
 | CONECUH, AL (35) | 
| 
 | COPIAH, MS (29) | 
| 
 | COVINGTON, AL (39) | 
| 
 | COVINGTON, MS (31) | 
| 
 | CRENSHAW, AL (41) | 
| 
 | DALLAS, AL (47) | 
| 
 | ELMORE, AL (51) | 
| 
 | ESCAMBIA, AL (53) | 
| 
 | ESCAMBIA, FL (33) | 
| 
 | FORREST, MS (35) | 
| 
 | FRANKLIN, MS (37) | 
| 
 | GEORGE, MS (39) | 
| 
 | GREENE, MS (41) | 
| 
 | HALE, AL (65) | 
| 
 | HANCOCK, MS (45) | 
| 
 | HARRISON, MS (47) | 
| 
 | HINDS, MS (49) | 
| 
 | HOLMES, MS (51) | 
| 
 | HUMPHREYS, MS (53) | 
| 
 | ISSAQUENA, MS (55) | 
| 
 | JACKSON, MS (59) | 
| 
 | JASPER, MS (61) | 
| 
 | JEFFERSON DAVIS, MS (65) | 
| 
 | JEFFERSON, MS (63) | 
| 
 | JONES, MS (67) | 
| 
 | LAMAR, MS (73) | 
| 
 | LAUDERDALE, MS (75) | 
| 
 | LAWRENCE, MS (77) | 
| 
 | LEAKE, MS (79) | 
| 
 | LEFLORE, MS (83) | 
| 
 | LINCOLN, MS (85) | 
| 
 | LOWNDES, AL (85) | 
| 
 | MACON, AL (87) | 
| 
 | MADISON, MS (89) | 
| 
 | MARENGO, AL (91) | 
| 
 | MARION, MS (91) | 
| 
 | MOBILE, AL (97) | 
| 
 | MONROE, AL (99) | 
| 
 | MONTGOMERY, AL (101) | 
| 
 | MONTGOMERY, MS (97) | 
| 
 | NESHOBA, MS (99) | 
| 
 | NEWTON, MS (101) | 
| 
 | OKALOOSA, FL (91) | 
| 
 | PEARL RIVER, MS (109) | 
| 
 | PERRY, AL (105) | 
| 
 | PERRY, MS (111) | 
| 
 | PIKE, MS (113) | 
| 
 | RANKIN, MS (121) | 
| 
 | SANTA ROSA, FL (113) | 
| 
 | SCOTT, MS (123) | 
| 
 | SHARKEY, MS (125) | 
| 
 | SIMPSON, MS (127) | 
| 
 | SMITH, MS (129) | 
| 
 | STONE, MS (131) | 
| 
 | WALTHALL, MS (147) | 
| 
 | WALTON, FL (131) | 
| 
 | WARREN, MS (149) | 
| 
 | WASHINGTON, AL (129) | 
| 
 | WASHINGTON, LA (117) | 
| 
 | WASHINGTON, MS (151) | 
| 
 | WAYNE, MS (153) | 
| 
 | WILCOX, AL (131) | 
| 
 | WILKINSON, MS (157) | 
| 
 | YAZOO, MS (163) | 
| 220 - Gulf Coast Basin (LA, TX) | ACADIA, LA (1) | 
| 
 | ALLEN, LA (3) | 
| 
 | ARANSAS, TX (7) | 
| 
 | ASCENSION, LA (5) | 
| 
 | ASSUMPTION, LA (7) | 
| 
 | ATASCOSA, TX (13) | 
| 
 | AUSTIN, TX (15) | 
| 
 | AVOYELLES, LA (9) | 
| 
 | BASTROP, TX (21) | 
| 
 | BEAUREGARD, LA (11) | 
| 
 | BEE, TX (25) | 
| 
 | BRAZORIA, TX (39) | 
| 
 | BRAZOS, TX (41) | 
| 
 | BROOKS, TX (47) | 
| 
 | BURLESON, TX (51) | 
| 
 | CALCASIEU, LA (19) | 
| 
 | CALDWELL, TX (55) | 
| 
 | CALHOUN, TX (57) | 
| 
 | CAMERON, LA (23) | 
| 
 | CAMERON, TX (61) | 
| 
 | CHAMBERS, TX (71) | 
| 
 | COLORADO, TX (89) | 
| 
 | DE WITT, TX (123) | 
| 
 | DIMMIT, TX (127) | 
| 
 | DUVAL, TX (131) | 
| 
 | EAST BATON ROUGE, LA (33) | 
| 
 | EAST FELICIANA, LA (37) | 
| 
 | EVANGELINE, LA (39) | 
| 
 | FAYETTE, TX (149) | 
| 
 | FORT BEND, TX (157) | 
| 
 | FRIO, TX (163) | 
| 
 | GALVESTON, TX (167) | 
| 
 | GOLIAD, TX (175) | 
| 
 | GONZALES, TX (177) | 
| 
 | GRIMES, TX (185) | 
| 
 | GUADALUPE, TX (187) | 
| 
 | HARDIN, TX (199) | 
| 
 | HARRIS, TX (201) | 
| 
 | HIDALGO, TX (215) | 
| 
 | IBERIA, LA (45) | 
| 
 | IBERVILLE, LA (47) | 
| 
 | JACKSON, TX (239) | 
| 
 | JASPER, TX (241) | 
| 
 | JEFFERSON DAVIS, LA (53) | 
| 
 | JEFFERSON, LA (51) | 
| 
 | JEFFERSON, TX (245) | 
| 
 | JIM HOGG, TX (247) | 
| 
 | JIM WELLS, TX (249) | 
| 
 | KARNES, TX (255) | 
| 
 | KENEDY, TX (261) | 
| 
 | KLEBERG, TX (273) | 
| 
 | LA SALLE, TX (283) | 
| 
 | LAFAYETTE, LA (55) | 
| 
 | LAFOURCHE, LA (57) | 
| 
 | LAVACA, TX (285) | 
| 
 | LEE, TX (287) | 
| 
 | LIBERTY, TX (291) | 
| 
 | LIVE OAK, TX (297) | 
| 
 | LIVINGSTON, LA (63) | 
| 
 | MADISON, TX (313) | 
| 
 | MATAGORDA, TX (321) | 
| 
 | MAVERICK, TX (323) | 
| 
 | MC MULLEN, TX (311) | 
| 
 | MILAM, TX (331) | 
| 
 | MONTGOMERY, TX (339) | 
| 
 | NEWTON, TX (351) | 
| 
 | NUECES, TX (355) | 
| 
 | ORANGE, TX (361) | 
| 
 | ORLEANS, LA (71) | 
| 
 | PLAQUEMINES, LA (75) | 
| 
 | POINTE COUPEE, LA (77) | 
| 
 | POLK, TX (373) | 
| 
 | RAPIDES, LA (79) | 
| 
 | REFUGIO, TX (391) | 
| 
 | SAN JACINTO, TX (407) | 
| 
 | SAN PATRICIO, TX (409) | 
| 
 | ST BERNARD, LA (87) | 
| 
 | ST CHARLES, LA (89) | 
| 
 | ST HELENA, LA (91) | 
| 
 | ST JAMES, LA (93) | 
| 
 | ST JOHN THE BAPTIST, LA (95) | 
| 
 | ST LANDRY, LA (97) | 
| 
 | ST MARTIN, LA (99) | 
| 
 | ST MARY, LA (101) | 
| 
 | ST TAMMANY, LA (103) | 
| 
 | STARR, TX (427) | 
| 
 | TANGIPAHOA, LA (105) | 
| 
 | TERREBONNE, LA (109) | 
| 
 | TRINITY, TX (455) | 
| 
 | TYLER, TX (457) | 
| 
 | VERMILION, LA (113) | 
| 
 | VERNON, LA (115) | 
| 
 | VICTORIA, TX (469) | 
| 
 | WALKER, TX (471) | 
| 
 | WALLER, TX (473) | 
| 
 | WASHINGTON, TX (477) | 
| 
 | WEBB, TX (479) | 
| 
 | WEST BATON ROUGE, LA (121) | 
| 
 | WEST FELICIANA, LA (125) | 
| 
 | WHARTON, TX (481) | 
| 
 | WILLACY, TX (489) | 
| 
 | WILSON, TX (493) | 
| 
 | ZAPATA, TX (505) | 
| 
 | ZAVALA, TX (507) | 
| 230 - Arkla Basin | ASHLEY, AR (3) | 
| 
 | BIENVILLE, LA (13) | 
| 
 | BOSSIER, LA (15) | 
| 
 | BRADLEY, AR (11) | 
| 
 | CADDO, LA (17) | 
| 
 | CALDWELL, LA (21) | 
| 
 | CALHOUN, AR (13) | 
| 
 | CATAHOULA, LA (25) | 
| 
 | CHICOT, AR (17) | 
| 
 | CLAIBORNE, LA (27) | 
| 
 | COLUMBIA, AR (27) | 
| 
 | CONCORDIA, LA (29) | 
| 
 | DE SOTO, LA (31) | 
| 
 | EAST CARROLL, LA (35) | 
| 
 | FRANKLIN, LA (41) | 
| 
 | GRANT, LA (43) | 
| 
 | HEMPSTEAD, AR (57) | 
| 
 | JACKSON, LA (49) | 
| 
 | LA SALLE, LA (59) | 
| 
 | LAFAYETTE, AR (73) | 
| 
 | LINCOLN, LA (61) | 
| 
 | LITTLE RIVER, AR (81) | 
| 
 | MADISON, LA (65) | 
| 
 | MILLER, AR (91) | 
| 
 | MOREHOUSE, LA (67) | 
| 
 | NATCHITOCHES, LA (69) | 
| 
 | NEVADA, AR (99) | 
| 
 | OUACHITA, AR (103) | 
| 
 | OUACHITA, LA (73) | 
| 
 | RED RIVER, LA (81) | 
| 
 | RICHLAND, LA (83) | 
| 
 | SABINE, LA (85) | 
| 
 | TENSAS, LA (107) | 
| 
 | UNION, AR (139) | 
| 
 | UNION, LA (111) | 
| 
 | WEBSTER, LA (119) | 
| 
 | WEST CARROLL, LA (123) | 
| 
 | WINN, LA (127) | 
| 240 - Desha Basin | ARKANSAS, AR (1) | 
| 
 | BOLIVAR, MS (11) | 
| 
 | CLEVELAND, AR (25) | 
| 
 | COAHOMA, MS (27) | 
| 
 | DESHA, AR (41) | 
| 
 | DREW, AR (43) | 
| 
 | JEFFERSON, AR (69) | 
| 
 | LINCOLN, AR (79) | 
| 
 | SUNFLOWER, MS (133) | 
| 250 - Upper Mississippi Embaymnt | ALCORN, MS (3) | 
| 
 | BALLARD, KY (7) | 
| 
 | BENTON, MS (9) | 
| 
 | CALLOWAY, KY (35) | 
| 
 | CARLISLE, KY (39) | 
| 
 | CARROLL, TN (17) | 
| 
 | CHESTER, TN (23) | 
| 
 | CLAY, AR (21) | 
| 
 | CRAIGHEAD, AR (31) | 
| 
 | CRITTENDEN, AR (35) | 
| 
 | CROCKETT, TN (33) | 
| 
 | CROSS, AR (37) | 
| 
 | DE SOTO, MS (33) | 
| 
 | DUNKLIN, MO (69) | 
| 
 | DYER, TN (45) | 
| 
 | FAYETTE, TN (47) | 
| 
 | FULTON, KY (75) | 
| 
 | GIBSON, TN (53) | 
| 
 | GRAVES, KY (83) | 
| 
 | GREENE, AR (55) | 
| 
 | HARDEMAN, TN (69) | 
| 
 | HARDIN, TN (71) | 
| 
 | HAYWOOD, TN (75) | 
| 
 | HENDERSON, TN (77) | 
| 
 | HENRY, TN (79) | 
| 
 | HICKMAN, KY (105) | 
| 
 | JACKSON, AR (67) | 
| 
 | LAKE, TN (95) | 
| 
 | LAUDERDALE, TN (97) | 
| 
 | LEE, AR (77) | 
| 
 | MADISON, TN (113) | 
| 
 | MARSHALL, KY (157) | 
| 
 | MARSHALL, MS (93) | 
| 
 | MC CRACKEN, KY (145) | 
| 
 | MC NAIRY, TN (109) | 
| 
 | MISSISSIPPI, AR (93) | 
| 
 | MISSISSIPPI, MO (133) | 
| 
 | MONROE, AR (95) | 
| 
 | NEW MADRID, MO (143) | 
| 
 | OBION, TN (131) | 
| 
 | PEMISCOT, MO (155) | 
| 
 | PHILLIPS, AR (107) | 
| 
 | POINSETT, AR (111) | 
| 
 | PRAIRIE, AR (117) | 
| 
 | SCOTT, MO (201) | 
| 
 | SHELBY, TN (157) | 
| 
 | ST FRANCIS, AR (123) | 
| 
 | STODDARD, MO (207) | 
| 
 | TATE, MS (137) | 
| 
 | TIPPAH, MS (139) | 
| 
 | TIPTON, TN (167) | 
| 
 | TUNICA, MS (143) | 
| 
 | WEAKLEY, TN (183) | 
| 
 | WOODRUFF, AR (147) | 
| 260 - East Texas Basin | ANDERSON, TX (1) | 
| 
 | ANGELINA, TX (5) | 
| 
 | BOWIE, TX (37) | 
| 
 | CAMP, TX (63) | 
| 
 | CASS, TX (67) | 
| 
 | CHEROKEE, TX (73) | 
| 
 | DELTA, TX (119) | 
| 
 | FALLS, TX (145) | 
| 
 | FRANKLIN, TX (159) | 
| 
 | FREESTONE, TX (161) | 
| 
 | GREGG, TX (183) | 
| 
 | HARRISON, TX (203) | 
| 
 | HENDERSON, TX (213) | 
| 
 | HOPKINS, TX (223) | 
| 
 | HOUSTON, TX (225) | 
| 
 | HUNT, TX (231) | 
| 
 | KAUFMAN, TX (257) | 
| 
 | LEON, TX (289) | 
| 
 | LIMESTONE, TX (293) | 
| 
 | MARION, TX (315) | 
| 
 | MORRIS, TX (343) | 
| 
 | NACOGDOCHES, TX (347) | 
| 
 | NAVARRO, TX (349) | 
| 
 | PANOLA, TX (365) | 
| 
 | RAINS, TX (379) | 
| 
 | ROBERTSON, TX (395) | 
| 
 | ROCKWALL, TX (397) | 
| 
 | RUSK, TX (401) | 
| 
 | SABINE, TX (403) | 
| 
 | SAN AUGUSTINE, TX (405) | 
| 
 | SHELBY, TX (419) | 
| 
 | SMITH, TX (423) | 
| 
 | TITUS, TX (449) | 
| 
 | UPSHUR, TX (459) | 
| 
 | VAN ZANDT, TX (467) | 
| 
 | WOOD, TX (499) | 
| 300 - Cincinnati Arch | ADAIR, KY (1) | 
| 
 | ADAMS, IN (1) | 
| 
 | ADAMS, OH (1) | 
| 
 | ALLEN, KY (3) | 
| 
 | ALLEN, OH (3) | 
| 
 | ANDERSON, KY (5) | 
| 
 | AUGLAIZE, OH (11) | 
| 
 | BARREN, KY (9) | 
| 
 | BATH, KY (11) | 
| 
 | BEDFORD, TN (3) | 
| 
 | BENTON, TN (5) | 
| 
 | BLACKFORD, IN (9) | 
| 
 | BOONE, IN (11) | 
| 
 | BOONE, KY (15) | 
| 
 | BOURBON, KY (17) | 
| 
 | BOYLE, KY (21) | 
| 
 | BRACKEN, KY (23) | 
| 
 | BROWN, OH (15) | 
| 
 | BULLITT, KY (29) | 
| 
 | BUTLER, OH (17) | 
| 
 | CAMPBELL, KY (37) | 
| 
 | CANNON, TN (15) | 
| 
 | CARROLL, IN (15) | 
| 
 | CARROLL, KY (41) | 
| 
 | CASEY, KY (45) | 
| 
 | CASS, IN (17) | 
| 
 | CHAMPAIGN, OH (21) | 
| 
 | CHEATHAM, TN (21) | 
| 
 | CLARK, IN (19) | 
| 
 | CLARK, KY (49) | 
| 
 | CLARK, OH (23) | 
| 
 | CLAY, TN (27) | 
| 
 | CLERMONT, OH (25) | 
| 
 | CLINTON, IN (23) | 
| 
 | CLINTON, KY (53) | 
| 
 | CLINTON, OH (27) | 
| 
 | COFFEE, TN (31) | 
| 
 | CUMBERLAND, KY (57) | 
| 
 | DARKE, OH (37) | 
| 
 | DAVIDSON, TN (37) | 
| 
 | DE KALB, TN (41) | 
| 
 | DEARBORN, IN (29) | 
| 
 | DECATUR, IN (31) | 
| 
 | DECATUR, TN (39) | 
| 
 | DELAWARE, IN (35) | 
| 
 | DICKSON, TN (43) | 
| 
 | EDMONSON, KY (61) | 
| 
 | FAYETTE, IN (41) | 
| 
 | FAYETTE, KY (67) | 
| 
 | FLEMING, KY (69) | 
| 
 | FLOYD, IN (43) | 
| 
 | FRANKLIN, IN (47) | 
| 
 | FRANKLIN, KY (73) | 
| 
 | FULTON, IN (49) | 
| 
 | GALLATIN, KY (77) | 
| 
 | GARRARD, KY (79) | 
| 
 | GILES, TN (55) | 
| 
 | GRANT, IN (53) | 
| 
 | GRANT, KY (81) | 
| 
 | GREEN, KY (87) | 
| 
 | GREENE, OH (57) | 
| 
 | HAMILTON, IN (57) | 
| 
 | HAMILTON, OH (61) | 
| 
 | HANCOCK, IN (59) | 
| 
 | HANCOCK, OH (63) | 
| 
 | HARDIN, KY (93) | 
| 
 | HARDIN, OH (65) | 
| 
 | HARRISON, KY (97) | 
| 
 | HART, KY (99) | 
| 
 | HENRY, IN (65) | 
| 
 | HENRY, KY (103) | 
| 
 | HICKMAN, TN (81) | 
| 
 | HIGHLAND, OH (71) | 
| 
 | HOUSTON, TN (83) | 
| 
 | HOWARD, IN (67) | 
| 
 | HUMPHREYS, TN (85) | 
| 
 | HUNTINGTON, IN (69) | 
| 
 | JACKSON, TN (87) | 
| 
 | JASPER, IN (73) | 
| 
 | JAY, IN (75) | 
| 
 | JEFFERSON, IN (77) | 
| 
 | JEFFERSON, KY (111) | 
| 
 | JENNINGS, IN (79) | 
| 
 | JESSAMINE, KY (113) | 
| 
 | KENTON, KY (117) | 
| 
 | LAKE, IN (89) | 
| 
 | LARUE, KY (123) | 
| 
 | LAUDERDALE, AL (77) | 
| 
 | LAWRENCE, TN (99) | 
| 
 | LEWIS, TN (101) | 
| 
 | LIMESTONE, AL (83) | 
| 
 | LINCOLN, KY (137) | 
| 
 | LINCOLN, TN (103) | 
| 
 | LOGAN, OH (91) | 
| 
 | MACON, TN (111) | 
| 
 | MADISON, IN (95) | 
| 
 | MADISON, KY (151) | 
| 
 | MARION, IN (97) | 
| 
 | MARION, KY (155) | 
| 
 | MARSHALL, TN (117) | 
| 
 | MASON, KY (161) | 
| 
 | MAURY, TN (119) | 
| 
 | MEADE, KY (163) | 
| 
 | MERCER, KY (167) | 
| 
 | MERCER, OH (107) | 
| 
 | METCALFE, KY (169) | 
| 
 | MIAMI, IN (103) | 
| 
 | MIAMI, OH (109) | 
| 
 | MONROE, KY (171) | 
| 
 | MONTGOMERY, KY (173) | 
| 
 | MONTGOMERY, OH (113) | 
| 
 | MONTGOMERY, TN (125) | 
| 
 | MOORE, TN (127) | 
| 
 | NELSON, KY (179) | 
| 
 | NEWTON, IN (111) | 
| 
 | NICHOLAS, KY (181) | 
| 
 | OHIO, IN (115) | 
| 
 | OLDHAM, KY (185) | 
| 
 | OTTAWA, OH (123) | 
| 
 | OVERTON, TN (133) | 
| 
 | OWEN, KY (187) | 
| 
 | PENDLETON, KY (191) | 
| 
 | PERRY, TN (135) | 
| 
 | PICKETT, TN (137) | 
| 
 | PORTER, IN (127) | 
| 
 | PREBLE, OH (135) | 
| 
 | PULASKI, IN (131) | 
| 
 | PULASKI, KY (199) | 
| 
 | PUTNAM, OH (137) | 
| 
 | PUTNAM, TN (141) | 
| 
 | RANDOLPH, IN (135) | 
| 
 | RIPLEY, IN (137) | 
| 
 | ROBERTSON, KY (201) | 
| 
 | ROBERTSON, TN (147) | 
| 
 | RUSH, IN (139) | 
| 
 | RUSSELL, KY (207) | 
| 
 | RUTHERFORD, TN (149) | 
| 
 | SANDUSKY, OH (143) | 
| 
 | SCOTT, IN (143) | 
| 
 | SCOTT, KY (209) | 
| 
 | SENECA, OH (147) | 
| 
 | SHELBY, IN (145) | 
| 
 | SHELBY, KY (211) | 
| 
 | SHELBY, OH (149) | 
| 
 | SIMPSON, KY (213) | 
| 
 | SMITH, TN (159) | 
| 
 | SPENCER, KY (215) | 
| 
 | STEWART, TN (161) | 
| 
 | SUMNER, TN (165) | 
| 
 | SWITZERLAND, IN (155) | 
| 
 | TAYLOR, KY (217) | 
| 
 | TIPTON, IN (159) | 
| 
 | TRIMBLE, KY (223) | 
| 
 | TROUSDALE, TN (169) | 
| 
 | UNION, IN (161) | 
| 
 | VAN WERT, OH (161) | 
| 
 | WABASH, IN (169) | 
| 
 | WARREN, KY (227) | 
| 
 | WARREN, OH (165) | 
| 
 | WARREN, TN (177) | 
| 
 | WASHINGTON, KY (229) | 
| 
 | WAYNE, IN (177) | 
| 
 | WAYNE, KY (231) | 
| 
 | WAYNE, TN (181) | 
| 
 | WELLS, IN (179) | 
| 
 | WHITE, IN (181) | 
| 
 | WILLIAMSON, TN (187) | 
| 
 | WILSON, TN (189) | 
| 
 | WOOD, OH (173) | 
| 
 | WOODFORD, KY (239) | 
| 
 | WYANDOT, OH (175) | 
| 305 - Michigan Basin | ALCONA, MI (1) | 
| 
 | ALGER, MI (3) | 
| 
 | ALLEGAN, MI (5) | 
| 
 | ALLEN, IN (3) | 
| 
 | ALPENA, MI (7) | 
| 
 | ANTRIM, MI (9) | 
| 
 | ARENAC, MI (11) | 
| 
 | BARRY, MI (15) | 
| 
 | BAY, MI (17) | 
| 
 | BENZIE, MI (19) | 
| 
 | BERRIEN, MI (21) | 
| 
 | BRANCH, MI (23) | 
| 
 | CALHOUN, MI (25) | 
| 
 | CASS, MI (27) | 
| 
 | CHARLEVOIX, MI (29) | 
| 
 | CHEBOYGAN, MI (31) | 
| 
 | CHIPPEWA, MI (33) | 
| 
 | CLARE, MI (35) | 
| 
 | CLINTON, MI (37) | 
| 
 | COOK, IL (31) | 
| 
 | CRAWFORD, MI (39) | 
| 
 | DE KALB, IN (33) | 
| 
 | DEFIANCE, OH (39) | 
| 
 | DELTA, MI (41) | 
| 
 | DOOR, WI (29) | 
| 
 | EATON, MI (45) | 
| 
 | ELKHART, IN (39) | 
| 
 | EMMET, MI (47) | 
| 
 | FULTON, OH (51) | 
| 
 | GENESEE, MI (49) | 
| 
 | GLADWIN, MI (51) | 
| 
 | GRAND TRAVERSE, MI (55) | 
| 
 | GRATIOT, MI (57) | 
| 
 | HENRY, OH (69) | 
| 
 | HILLSDALE, MI (59) | 
| 
 | HURON, MI (63) | 
| 
 | INGHAM, MI (65) | 
| 
 | IONIA, MI (67) | 
| 
 | IOSCO, MI (69) | 
| 
 | ISABELLA, MI (73) | 
| 
 | JACKSON, MI (75) | 
| 
 | KALAMAZOO, MI (77) | 
| 
 | KALKASKA, MI (79) | 
| 
 | KENOSHA, WI (59) | 
| 
 | KENT, MI (81) | 
| 
 | KEWAUNEE, WI (61) | 
| 
 | KOSCIUSKO, IN (85) | 
| 
 | LA PORTE, IN (91) | 
| 
 | LAGRANGE, IN (87) | 
| 
 | LAKE, IL (97) | 
| 
 | LAKE, MI (85) | 
| 
 | LAPEER, MI (87) | 
| 
 | LEELANAU, MI (89) | 
| 
 | LENAWEE, MI (91) | 
| 
 | LIVINGSTON, MI (93) | 
| 
 | LUCAS, OH (95) | 
| 
 | LUCE, MI (95) | 
| 
 | MACKINAC, MI (97) | 
| 
 | MACOMB, MI (99) | 
| 
 | MANISTEE, MI (101) | 
| 
 | MANITOWOC, WI (71) | 
| 
 | MARSHALL, IN (99) | 
| 
 | MASON, MI (105) | 
| 
 | MECOSTA, MI (107) | 
| 
 | MIDLAND, MI (111) | 
| 
 | MILWAUKEE, WI (79) | 
| 
 | MISSAUKEE, MI (113) | 
| 
 | MONROE, MI (115) | 
| 
 | MONTCALM, MI (117) | 
| 
 | MONTMORENCY, MI (119) | 
| 
 | MUSKEGON, MI (121) | 
| 
 | NEWAYGO, MI (123) | 
| 
 | NOBLE, IN (113) | 
| 
 | OAKLAND, MI (125) | 
| 
 | OCEANA, MI (127) | 
| 
 | OGEMAW, MI (129) | 
| 
 | OSCEOLA, MI (133) | 
| 
 | OSCODA, MI (135) | 
| 
 | OTSEGO, MI (137) | 
| 
 | OTTAWA, MI (139) | 
| 
 | OZAUKEE, WI (89) | 
| 
 | PAULDING, OH (125) | 
| 
 | PRESQUE ISLE, MI (141) | 
| 
 | RACINE, WI (101) | 
| 
 | ROSCOMMON, MI (143) | 
| 
 | SAGINAW, MI (145) | 
| 
 | SANILAC, MI (151) | 
| 
 | SCHOOLCRAFT, MI (153) | 
| 
 | SHEBOYGAN, WI (117) | 
| 
 | SHIAWASSEE, MI (155) | 
| 
 | ST CLAIR, MI (147) | 
| 
 | ST JOSEPH, IN (141) | 
| 
 | ST JOSEPH, MI (149) | 
| 
 | STARKE, IN (149) | 
| 
 | STEUBEN, IN (151) | 
| 
 | TUSCOLA, MI (157) | 
| 
 | VAN BUREN, MI (159) | 
| 
 | WASHTENAW, MI (161) | 
| 
 | WAYNE, MI (163) | 
| 
 | WEXFORD, MI (165) | 
| 
 | WHITLEY, IN (183) | 
| 
 | WILLIAMS, OH (171) | 
| 310 - Wisconsin Arch | ADAMS, WI (1) | 
| 
 | ASHLAND, WI (3) | 
| 
 | BARAGA, MI (13) | 
| 
 | BARRON, WI (5) | 
| 
 | BAYFIELD, WI (7) | 
| 
 | BOONE, IL (7) | 
| 
 | BROWN, WI (9) | 
| 
 | BUFFALO, WI (11) | 
| 
 | BURNETT, WI (13) | 
| 
 | CALUMET, WI (15) | 
| 
 | CARROLL, IL (15) | 
| 
 | CHIPPEWA, WI (17) | 
| 
 | CLARK, WI (19) | 
| 
 | COLUMBIA, WI (21) | 
| 
 | CRAWFORD, WI (23) | 
| 
 | DANE, WI (25) | 
| 
 | DE KALB, IL (37) | 
| 
 | DICKINSON, MI (43) | 
| 
 | DODGE, WI (27) | 
| 
 | DOUGLAS, WI (31) | 
| 
 | DU PAGE, IL (43) | 
| 
 | DUNN, WI (33) | 
| 
 | EAU CLAIRE, WI (35) | 
| 
 | FLORENCE, WI (37) | 
| 
 | FOND DU LAC, WI (39) | 
| 
 | FOREST, WI (41) | 
| 
 | GOGEBIC, MI (53) | 
| 
 | GRANT, WI (43) | 
| 
 | GREEN LAKE, WI (47) | 
| 
 | GREEN, WI (45) | 
| 
 | GRUNDY, IL (63) | 
| 
 | HOUGHTON, MI (61) | 
| 
 | IOWA, WI (49) | 
| 
 | IRON, MI (71) | 
| 
 | IRON, WI (51) | 
| 
 | JACKSON, WI (53) | 
| 
 | JEFFERSON, WI (55) | 
| 
 | JO DAVIESS, IL (85) | 
| 
 | JUNEAU, WI (57) | 
| 
 | KANE, IL (89) | 
| 
 | KANKAKEE, IL (91) | 
| 
 | KENDALL, IL (93) | 
| 
 | KEWEENAW, MI (83) | 
| 
 | LA CROSSE, WI (63) | 
| 
 | LA SALLE, IL (99) | 
| 
 | LAFAYETTE, WI (65) | 
| 
 | LANGLADE, WI (67) | 
| 
 | LEE, IL (103) | 
| 
 | LINCOLN, WI (69) | 
| 
 | MARATHON, WI (73) | 
| 
 | MARINETTE, WI (75) | 
| 
 | MARQUETTE, MI (103) | 
| 
 | MARQUETTE, WI (77) | 
| 
 | MC HENRY, IL (111) | 
| 
 | MENOMINEE, MI (109) | 
| 
 | MENOMINEE, WI (78) | 
| 
 | MONROE, WI (81) | 
| 
 | OCONTO, WI (83) | 
| 
 | OGLE, IL (141) | 
| 
 | ONEIDA, WI (85) | 
| 
 | ONTONAGON, MI (131) | 
| 
 | OUTAGAMIE, WI (87) | 
| 
 | PEPIN, WI (91) | 
| 
 | PIERCE, WI (93) | 
| 
 | POLK, WI (95) | 
| 
 | PORTAGE, WI (97) | 
| 
 | PRICE, WI (99) | 
| 
 | RICHLAND, WI (103) | 
| 
 | ROCK ISLAND, IL (161) | 
| 
 | ROCK, WI (105) | 
| 
 | RUSK, WI (107) | 
| 
 | SAUK, WI (111) | 
| 
 | SAWYER, WI (113) | 
| 
 | SHAWANO, WI (115) | 
| 
 | ST CROIX, WI (109) | 
| 
 | STEPHENSON, IL (177) | 
| 
 | TAYLOR, WI (119) | 
| 
 | TREMPEALEAU, WI (121) | 
| 
 | VERNON, WI (123) | 
| 
 | VILAS, WI (125) | 
| 
 | WALWORTH, WI (127) | 
| 
 | WASHBURN, WI (129) | 
| 
 | WASHINGTON, WI (131) | 
| 
 | WAUKESHA, WI (133) | 
| 
 | WAUPACA, WI (135) | 
| 
 | WAUSHARA, WI (137) | 
| 
 | WHITESIDE, IL (195) | 
| 
 | WILL, IL (197) | 
| 
 | WINNEBAGO, IL (201) | 
| 
 | WINNEBAGO, WI (139) | 
| 
 | WOOD, WI (141) | 
| 315 - Illinois Basin | ADAMS, IL (1) | 
| 
 | ALEXANDER, IL (3) | 
| 
 | BARTHOLOMEW, IN (5) | 
| 
 | BENTON, IN (7) | 
| 
 | BOND, IL (5) | 
| 
 | BRECKINRIDGE, KY (27) | 
| 
 | BROWN, IL (9) | 
| 
 | BROWN, IN (13) | 
| 
 | BUREAU, IL (11) | 
| 
 | BUTLER, KY (31) | 
| 
 | CALDWELL, KY (33) | 
| 
 | CALHOUN, IL (13) | 
| 
 | CASS, IL (17) | 
| 
 | CHAMPAIGN, IL (19) | 
| 
 | CHRISTIAN, IL (21) | 
| 
 | CHRISTIAN, KY (47) | 
| 
 | CLARK, IL (23) | 
| 
 | CLAY, IL (25) | 
| 
 | CLAY, IN (21) | 
| 
 | CLINTON, IL (27) | 
| 
 | COLES, IL (29) | 
| 
 | CRAWFORD, IL (33) | 
| 
 | CRAWFORD, IN (25) | 
| 
 | CRITTENDEN, KY (55) | 
| 
 | CUMBERLAND, IL (35) | 
| 
 | DAVIESS, IN (27) | 
| 
 | DAVIESS, KY (59) | 
| 
 | DE WITT, IL (39) | 
| 
 | DOUGLAS, IL (41) | 
| 
 | DUBOIS, IN (37) | 
| 
 | EDGAR, IL (45) | 
| 
 | EDWARDS, IL (47) | 
| 
 | EFFINGHAM, IL (49) | 
| 
 | FAYETTE, IL (51) | 
| 
 | FORD, IL (53) | 
| 
 | FOUNTAIN, IN (45) | 
| 
 | FRANKLIN, IL (55) | 
| 
 | FULTON, IL (57) | 
| 
 | GALLATIN, IL (59) | 
| 
 | GIBSON, IN (51) | 
| 
 | GRAYSON, KY (85) | 
| 
 | GREENE, IL (61) | 
| 
 | GREENE, IN (55) | 
| 
 | HAMILTON, IL (65) | 
| 
 | HANCOCK, IL (67) | 
| 
 | HANCOCK, KY (91) | 
| 
 | HARDIN, IL (69) | 
| 
 | HARRISON, IN (61) | 
| 
 | HENDERSON, IL (71) | 
| 
 | HENDERSON, KY (101) | 
| 
 | HENDRICKS, IN (63) | 
| 
 | HENRY, IL (73) | 
| 
 | HOPKINS, KY (107) | 
| 
 | IROQUOIS, IL (75) | 
| 
 | JACKSON, IL (77) | 
| 
 | JACKSON, IN (71) | 
| 
 | JASPER, IL (79) | 
| 
 | JEFFERSON, IL (81) | 
| 
 | JEFFERSON, MO (99) | 
| 
 | JERSEY, IL (83) | 
| 
 | JOHNSON, IL (87) | 
| 
 | JOHNSON, IN (81) | 
| 
 | KNOX, IL (95) | 
| 
 | KNOX, IN (83) | 
| 
 | LAWRENCE, IL (101) | 
| 
 | LAWRENCE, IN (93) | 
| 
 | LIVINGSTON, IL (105) | 
| 
 | LIVINGSTON, KY (139) | 
| 
 | LOGAN, IL (107) | 
| 
 | LOGAN, KY (141) | 
| 
 | LYON, KY (143) | 
| 
 | MACON, IL (115) | 
| 
 | MACOUPIN, IL (117) | 
| 
 | MADISON, IL (119) | 
| 
 | MARION, IL (121) | 
| 
 | MARSHALL, IL (123) | 
| 
 | MARTIN, IN (101) | 
| 
 | MASON, IL (125) | 
| 
 | MASSAC, IL (127) | 
| 
 | MC DONOUGH, IL (109) | 
| 
 | MC LEAN, IL (113) | 
| 
 | MC LEAN, KY (149) | 
| 
 | MENARD, IL (129) | 
| 
 | MERCER, IL (131) | 
| 
 | MONROE, IL (133) | 
| 
 | MONROE, IN (105) | 
| 
 | MONTGOMERY, IL (135) | 
| 
 | MONTGOMERY, IN (107) | 
| 
 | MORGAN, IL (137) | 
| 
 | MORGAN, IN (109) | 
| 
 | MOULTRIE, IL (139) | 
| 
 | MUHLENBERG, KY (177) | 
| 
 | OHIO, KY (183) | 
| 
 | ORANGE, IN (117) | 
| 
 | OWEN, IN (119) | 
| 
 | PARKE, IN (121) | 
| 
 | PEORIA, IL (143) | 
| 
 | PERRY, IL (145) | 
| 
 | PERRY, IN (123) | 
| 
 | PIATT, IL (147) | 
| 
 | PIKE, IL (149) | 
| 
 | PIKE, IN (125) | 
| 
 | POPE, IL (151) | 
| 
 | POSEY, IN (129) | 
| 
 | PULASKI, IL (153) | 
| 
 | PUTNAM, IL (155) | 
| 
 | PUTNAM, IN (133) | 
| 
 | RANDOLPH, IL (157) | 
| 
 | RICHLAND, IL (159) | 
| 
 | SALINE, IL (165) | 
| 
 | SANGAMON, IL (167) | 
| 
 | SCHUYLER, IL (169) | 
| 
 | SCOTT, IL (171) | 
| 
 | SHELBY, IL (173) | 
| 
 | SPENCER, IN (147) | 
| 
 | ST CHARLES, MO (183) | 
| 
 | ST CLAIR, IL (163) | 
| 
 | ST LOUIS, MO (189) | 
| 
 | STARK, IL (175) | 
| 
 | SULLIVAN, IN (153) | 
| 
 | TAZEWELL, IL (179) | 
| 
 | TIPPECANOE, IN (157) | 
| 
 | TODD, KY (219) | 
| 
 | TRIGG, KY (221) | 
| 
 | UNION, IL (181) | 
| 
 | UNION, KY (225) | 
| 
 | VANDERBURGH, IN (163) | 
| 
 | VERMILION, IL (183) | 
| 
 | VERMILLION, IN (165) | 
| 
 | VIGO, IN (167) | 
| 
 | WABASH, IL (185) | 
| 
 | WARREN, IL (187) | 
| 
 | WARREN, IN (171) | 
| 
 | WARRICK, IN (173) | 
| 
 | WASHINGTON, IL (189) | 
| 
 | WASHINGTON, IN (175) | 
| 
 | WAYNE, IL (191) | 
| 
 | WEBSTER, KY (233) | 
| 
 | WHITE, IL (193) | 
| 
 | WILLIAMSON, IL (199) | 
| 
 | WOODFORD, IL (203) | 
| 320 - Sioux Uplift | AITKIN, MN (1) | 
| 
 | ANOKA, MN (3) | 
| 
 | AURORA, SD (3) | 
| 
 | BEADLE, SD (5) | 
| 
 | BECKER, MN (5) | 
| 
 | BELTRAMI, MN (7) | 
| 
 | BENNETT, SD (7) | 
| 
 | BENTON, MN (9) | 
| 
 | BIG STONE, MN (11) | 
| 
 | BLUE EARTH, MN (13) | 
| 
 | BON HOMME, SD (9) | 
| 
 | BROOKINGS, SD (11) | 
| 
 | BROWN, MN (15) | 
| 
 | BROWN, SD (13) | 
| 
 | BRULE, SD (15) | 
| 
 | BUFFALO, SD (17) | 
| 
 | CARLTON, MN (17) | 
| 
 | CARVER, MN (19) | 
| 
 | CASS, MN (21) | 
| 
 | CHARLES MIX, SD (23) | 
| 
 | CHIPPEWA, MN (23) | 
| 
 | CHISAGO, MN (25) | 
| 
 | CLARK, SD (25) | 
| 
 | CLAY, MN (27) | 
| 
 | CLAY, SD (27) | 
| 
 | CLEARWATER, MN (29) | 
| 
 | CODINGTON, SD (29) | 
| 
 | COOK, MN (31) | 
| 
 | COTTONWOOD, MN (33) | 
| 
 | CROW WING, MN (35) | 
| 
 | DAKOTA, MN (37) | 
| 
 | DAVISON, SD (35) | 
| 
 | DAY, SD (37) | 
| 
 | DEUEL, SD (39) | 
| 
 | DOUGLAS, MN (41) | 
| 
 | DOUGLAS, SD (43) | 
| 
 | FAULK, SD (49) | 
| 
 | GRANT, MN (51) | 
| 
 | GRANT, SD (51) | 
| 
 | GREGORY, SD (53) | 
| 
 | HAMLIN, SD (57) | 
| 
 | HAND, SD (59) | 
| 
 | HANSON, SD (61) | 
| 
 | HENNEPIN, MN (53) | 
| 
 | HUBBARD, MN (57) | 
| 
 | HUTCHINSON, SD (67) | 
| 
 | HYDE, SD (69) | 
| 
 | ISANTI, MN (59) | 
| 
 | ITASCA, MN (61) | 
| 
 | JACKSON, MN (63) | 
| 
 | JACKSON, SD (71) | 
| 
 | JERAULD, SD (73) | 
| 
 | KANABEC, MN (65) | 
| 
 | KANDIYOHI, MN (67) | 
| 
 | KINGSBURY, SD (77) | 
| 
 | KITTSON, MN (69) | 
| 
 | KOOCHICHING, MN (71) | 
| 
 | LAC QUI PARLE, MN (73) | 
| 
 | LAKE OF THE WOODS, MN (77) | 
| 
 | LAKE, MN (75) | 
| 
 | LAKE, SD (79) | 
| 
 | LE SUEUR, MN (79) | 
| 
 | LINCOLN, MN (81) | 
| 
 | LINCOLN, SD (83) | 
| 
 | LYMAN, SD (85) | 
| 
 | LYON, MN (83) | 
| 
 | MAHNOMEN, MN (87) | 
| 
 | MARSHALL, MN (89) | 
| 
 | MARSHALL, SD (91) | 
| 
 | MC COOK, SD (87) | 
| 
 | MC LEOD, MN (85) | 
| 
 | MEEKER, MN (93) | 
| 
 | MELLETTE, SD (95) | 
| 
 | MILLE LACS, MN (95) | 
| 
 | MINER, SD (97) | 
| 
 | MINNEHAHA, SD (99) | 
| 
 | MOODY, SD (101) | 
| 
 | MORRISON, MN (97) | 
| 
 | MURRAY, MN (101) | 
| 
 | NICOLLET, MN (103) | 
| 
 | NOBLES, MN (105) | 
| 
 | NORMAN, MN (107) | 
| 
 | OTTER TAIL, MN (111) | 
| 
 | PENNINGTON, MN (113) | 
| 
 | PINE, MN (115) | 
| 
 | PIPESTONE, MN (117) | 
| 
 | POLK, MN (119) | 
| 
 | POPE, MN (121) | 
| 
 | RAMSEY, MN (123) | 
| 
 | RED LAKE, MN (125) | 
| 
 | REDWOOD, MN (127) | 
| 
 | RENVILLE, MN (129) | 
| 
 | ROBERTS, SD (109) | 
| 
 | ROCK, MN (133) | 
| 
 | ROSEAU, MN (135) | 
| 
 | SANBORN, SD (111) | 
| 
 | SCOTT, MN (139) | 
| 
 | SHERBURNE, MN (141) | 
| 
 | SIBLEY, MN (143) | 
| 
 | SPINK, SD (115) | 
| 
 | ST LOUIS, MN (137) | 
| 
 | STEARNS, MN (145) | 
| 
 | STEVENS, MN (149) | 
| 
 | SWIFT, MN (151) | 
| 
 | TODD, MN (153) | 
| 
 | TODD, SD (121) | 
| 
 | TRAVERSE, MN (155) | 
| 
 | TRIPP, SD (123) | 
| 
 | TURNER, SD (125) | 
| 
 | UNION, SD (127) | 
| 
 | WADENA, MN (159) | 
| 
 | WASHINGTON, MN (163) | 
| 
 | WATONWAN, MN (165) | 
| 
 | WILKIN, MN (167) | 
| 
 | WRIGHT, MN (171) | 
| 
 | YANKTON, SD (135) | 
| 
 | YELLOW MEDICINE, MN (173) | 
| 325 - Iowa Shelf | ALLAMAKEE, IA (5) | 
| 
 | APPANOOSE, IA (7) | 
| 
 | AUDUBON, IA (9) | 
| 
 | BENTON, IA (11) | 
| 
 | BLACK HAWK, IA (13) | 
| 
 | BOONE, IA (15) | 
| 
 | BREMER, IA (17) | 
| 
 | BUCHANAN, IA (19) | 
| 
 | BUENA VISTA, IA (21) | 
| 
 | BUTLER, IA (23) | 
| 
 | CALHOUN, IA (25) | 
| 
 | CARROLL, IA (27) | 
| 
 | CEDAR, IA (31) | 
| 
 | CERRO GORDO, IA (33) | 
| 
 | CHEROKEE, IA (35) | 
| 
 | CHICKASAW, IA (37) | 
| 
 | CLARKE, IA (39) | 
| 
 | CLAY, IA (41) | 
| 
 | CLAYTON, IA (43) | 
| 
 | CLINTON, IA (45) | 
| 
 | CRAWFORD, IA (47) | 
| 
 | DALLAS, IA (49) | 
| 
 | DAVIS, IA (51) | 
| 
 | DECATUR, IA (53) | 
| 
 | DELAWARE, IA (55) | 
| 
 | DES MOINES, IA (57) | 
| 
 | DICKINSON, IA (59) | 
| 
 | DODGE, MN (39) | 
| 
 | DUBUQUE, IA (61) | 
| 
 | EMMET, IA (63) | 
| 
 | FARIBAULT, MN (43) | 
| 
 | FAYETTE, IA (65) | 
| 
 | FILLMORE, MN (45) | 
| 
 | FLOYD, IA (67) | 
| 
 | FRANKLIN, IA (69) | 
| 
 | FREEBORN, MN (47) | 
| 
 | GOODHUE, MN (49) | 
| 
 | GREENE, IA (73) | 
| 
 | GRUNDY, IA (75) | 
| 
 | GUTHRIE, IA (77) | 
| 
 | HAMILTON, IA (79) | 
| 
 | HANCOCK, IA (81) | 
| 
 | HARDIN, IA (83) | 
| 
 | HARRISON, IA (85) | 
| 
 | HENRY, IA (87) | 
| 
 | HOUSTON, MN (55) | 
| 
 | HOWARD, IA (89) | 
| 
 | HUMBOLDT, IA (91) | 
| 
 | IDA, IA (93) | 
| 
 | IOWA, IA (95) | 
| 
 | JACKSON, IA (97) | 
| 
 | JASPER, IA (99) | 
| 
 | JEFFERSON, IA (101) | 
| 
 | JOHNSON, IA (103) | 
| 
 | JONES, IA (105) | 
| 
 | KEOKUK, IA (107) | 
| 
 | KOSSUTH, IA (109) | 
| 
 | LEE, IA (111) | 
| 
 | LINN, IA (113) | 
| 
 | LOUISA, IA (115) | 
| 
 | LUCAS, IA (117) | 
| 
 | LYON, IA (119) | 
| 
 | MADISON, IA (121) | 
| 
 | MAHASKA, IA (123) | 
| 
 | MARION, IA (125) | 
| 
 | MARSHALL, IA (127) | 
| 
 | MARTIN, MN (91) | 
| 
 | MITCHELL, IA (131) | 
| 
 | MONONA, IA (133) | 
| 
 | MONROE, IA (135) | 
| 
 | MOWER, MN (99) | 
| 
 | MUSCATINE, IA (139) | 
| 
 | O BRIEN, IA (141) | 
| 
 | OLMSTED, MN (109) | 
| 
 | OSCEOLA, IA (143) | 
| 
 | PALO ALTO, IA (147) | 
| 
 | PLYMOUTH, IA (149) | 
| 
 | POCAHONTAS, IA (151) | 
| 
 | POLK, IA (153) | 
| 
 | POWESHIEK, IA (157) | 
| 
 | RICE, MN (131) | 
| 
 | SAC, IA (161) | 
| 
 | SCOTT, IA (163) | 
| 
 | SHELBY, IA (165) | 
| 
 | SIOUX, IA (167) | 
| 
 | STEELE, MN (147) | 
| 
 | STORY, IA (169) | 
| 
 | TAMA, IA (171) | 
| 
 | VAN BUREN, IA (177) | 
| 
 | WABASHA, MN (157) | 
| 
 | WAPELLO, IA (179) | 
| 
 | WARREN, IA (181) | 
| 
 | WASECA, MN (161) | 
| 
 | WASHINGTON, IA (183) | 
| 
 | WAYNE, IA (185) | 
| 
 | WEBSTER, IA (187) | 
| 
 | WINNEBAGO, IA (189) | 
| 
 | WINNESHIEK, IA (191) | 
| 
 | WINONA, MN (169) | 
| 
 | WOODBURY, IA (193) | 
| 
 | WORTH, IA (195) | 
| 
 | WRIGHT, IA (197) | 
| 330 - Lincoln Anticline | ADAIR, MO (1) | 
| 
 | AUDRAIN, MO (7) | 
| 
 | CLARK, MO (45) | 
| 
 | KNOX, MO (103) | 
| 
 | LEWIS, MO (111) | 
| 
 | LINCOLN, MO (113) | 
| 
 | MACON, MO (121) | 
| 
 | MARION, MO (127) | 
| 
 | MONROE, MO (137) | 
| 
 | MONTGOMERY, MO (139) | 
| 
 | PIKE, MO (163) | 
| 
 | RALLS, MO (173) | 
| 
 | SCHUYLER, MO (197) | 
| 
 | SCOTLAND, MO (199) | 
| 
 | SHELBY, MO (205) | 
| 335 - Forest City Basin | ADAIR, IA (1) | 
| 
 | ADAMS, IA (3) | 
| 
 | ANDERSON, KS (3) | 
| 
 | ANDREW, MO (3) | 
| 
 | ATCHISON, KS (5) | 
| 
 | ATCHISON, MO (5) | 
| 
 | BATES, MO (13) | 
| 
 | BROWN, KS (13) | 
| 
 | BUCHANAN, MO (21) | 
| 
 | CALDWELL, MO (25) | 
| 
 | CARROLL, MO (33) | 
| 
 | CASS, IA (29) | 
| 
 | CASS, MO (37) | 
| 
 | CLAY, MO (47) | 
| 
 | CLINTON, MO (49) | 
| 
 | COFFEY, KS (31) | 
| 
 | DAVIESS, MO (61) | 
| 
 | DE KALB, MO (63) | 
| 
 | DONIPHAN, KS (43) | 
| 
 | DOUGLAS, KS (45) | 
| 
 | FRANKLIN, KS (59) | 
| 
 | FREMONT, IA (71) | 
| 
 | GENTRY, MO (75) | 
| 
 | GRUNDY, MO (79) | 
| 
 | HARRISON, MO (81) | 
| 
 | HENRY, MO (83) | 
| 
 | HOLT, MO (87) | 
| 
 | JACKSON, KS (85) | 
| 
 | JACKSON, MO (95) | 
| 
 | JEFFERSON, KS (87) | 
| 
 | JOHNSON, KS (91) | 
| 
 | JOHNSON, MO (101) | 
| 
 | LAFAYETTE, MO (107) | 
| 
 | LEAVENWORTH, KS (103) | 
| 
 | LINN, KS (107) | 
| 
 | LINN, MO (115) | 
| 
 | LIVINGSTON, MO (117) | 
| 
 | LYON, KS (111) | 
| 
 | MERCER, MO (129) | 
| 
 | MIAMI, KS (121) | 
| 
 | MILLS, IA (129) | 
| 
 | MONTGOMERY, IA (137) | 
| 
 | NEMAHA, NE (127) | 
| 
 | NODAWAY, MO (147) | 
| 
 | OSAGE, KS (139) | 
| 
 | PAGE, IA (145) | 
| 
 | PLATTE, MO (165) | 
| 
 | POTTAWATTAMIE, IA (155) | 
| 
 | PUTNAM, MO (171) | 
| 
 | RAY, MO (177) | 
| 
 | RICHARDSON, NE (147) | 
| 
 | RINGGOLD, IA (159) | 
| 
 | SHAWNEE, KS (177) | 
| 
 | SULLIVAN, MO (211) | 
| 
 | TAYLOR, IA (173) | 
| 
 | UNION, IA (175) | 
| 
 | WABAUNSEE, KS (197) | 
| 
 | WORTH, MO (227) | 
| 
 | WYANDOTTE, KS (209) | 
| 340 - Ozark Uplift | BARRY, MO (9) | 
| 
 | BAXTER, AR (5) | 
| 
 | BENTON, AR (7) | 
| 
 | BENTON, MO (15) | 
| 
 | BOLLINGER, MO (17) | 
| 
 | BOONE, AR (9) | 
| 
 | BOONE, MO (19) | 
| 
 | BUTLER, MO (23) | 
| 
 | CALLAWAY, MO (27) | 
| 
 | CAMDEN, MO (29) | 
| 
 | CAPE GIRARDEAU, MO (31) | 
| 
 | CARROLL, AR (15) | 
| 
 | CARTER, MO (35) | 
| 
 | CHARITON, MO (41) | 
| 
 | CHRISTIAN, MO (43) | 
| 
 | COLE, MO (51) | 
| 
 | COOPER, MO (53) | 
| 
 | CRAWFORD, MO (55) | 
| 
 | DADE, MO (57) | 
| 
 | DALLAS, MO (59) | 
| 
 | DENT, MO (65) | 
| 
 | DOUGLAS, MO (67) | 
| 
 | FRANKLIN, MO (71) | 
| 
 | FULTON, AR (49) | 
| 
 | GASCONADE, MO (73) | 
| 
 | GREENE, MO (77) | 
| 
 | HICKORY, MO (85) | 
| 
 | HOWARD, MO (89) | 
| 
 | HOWELL, MO (91) | 
| 
 | IRON, MO (93) | 
| 
 | IZARD, AR (65) | 
| 
 | JASPER, MO (97) | 
| 
 | LACLEDE, MO (105) | 
| 
 | LAWRENCE, AR (75) | 
| 
 | LAWRENCE, MO (109) | 
| 
 | MADISON, MO (123) | 
| 
 | MARIES, MO (125) | 
| 
 | MARION, AR (89) | 
| 
 | MC DONALD, MO (119) | 
| 
 | MILLER, MO (131) | 
| 
 | MONITEAU, MO (135) | 
| 
 | MORGAN, MO (141) | 
| 
 | NEWTON, MO (145) | 
| 
 | OREGON, MO (149) | 
| 
 | OSAGE, MO (151) | 
| 
 | OZARK, MO (153) | 
| 
 | PERRY, MO (157) | 
| 
 | PETTIS, MO (159) | 
| 
 | PHELPS, MO (161) | 
| 
 | POLK, MO (167) | 
| 
 | PULASKI, MO (169) | 
| 
 | RANDOLPH, AR (121) | 
| 
 | RANDOLPH, MO (175) | 
| 
 | REYNOLDS, MO (179) | 
| 
 | RIPLEY, MO (181) | 
| 
 | SALINE, MO (195) | 
| 
 | SHANNON, MO (203) | 
| 
 | SHARP, AR (135) | 
| 
 | ST FRANCOIS, MO (187) | 
| 
 | ST GENEVIEVE, MO (193) | 
| 
 | ST LOUIS CITY, MO (510) | 
| 
 | STONE, MO (209) | 
| 
 | TANEY, MO (213) | 
| 
 | TEXAS, MO (215) | 
| 
 | WARREN, MO (219) | 
| 
 | WASHINGTON, MO (221) | 
| 
 | WAYNE, MO (223) | 
| 
 | WEBSTER, MO (225) | 
| 
 | WRIGHT, MO (229) | 
| 345 - Arkoma Basin | ADAIR, OK (1) | 
| 
 | CLEBURNE, AR (23) | 
| 
 | COAL, OK (29) | 
| 
 | CONWAY, AR (29) | 
| 
 | CRAWFORD, AR (33) | 
| 
 | FAULKNER, AR (45) | 
| 
 | FRANKLIN, AR (47) | 
| 
 | HASKELL, OK (61) | 
| 
 | INDEPENDENCE, AR (63) | 
| 
 | JOHNSON, AR (71) | 
| 
 | LATIMER, OK (77) | 
| 
 | LE FLORE, OK (79) | 
| 
 | LOGAN, AR (83) | 
| 
 | MADISON, AR (87) | 
| 
 | NEWTON, AR (101) | 
| 
 | PERRY, AR (105) | 
| 
 | PITTSBURG, OK (121) | 
| 
 | PONTOTOC, OK (123) | 
| 
 | POPE, AR (115) | 
| 
 | SCOTT, AR (127) | 
| 
 | SEARCY, AR (129) | 
| 
 | SEBASTIAN, AR (131) | 
| 
 | SEQUOYAH, OK (135) | 
| 
 | STONE, AR (137) | 
| 
 | VAN BUREN, AR (141) | 
| 
 | WASHINGTON, AR (143) | 
| 
 | WHITE, AR (145) | 
| 
 | YELL, AR (149) | 
| 350 - South Oklahoma Folded Belt | CARTER, OK (19) | 
| 
 | COMANCHE, OK (31) | 
| 
 | COOKE, TX (97) | 
| 
 | COTTON, OK (33) | 
| 
 | GARVIN, OK (49) | 
| 
 | GRAYSON, TX (181) | 
| 
 | GREER, OK (55) | 
| 
 | JEFFERSON, OK (67) | 
| 
 | JOHNSTON, OK (69) | 
| 
 | KIOWA, OK (75) | 
| 
 | LOVE, OK (85) | 
| 
 | MARSHALL, OK (95) | 
| 
 | MURRAY, OK (99) | 
| 
 | STEPHENS, OK (137) | 
| 355 - Chautauqua Platform | CHEROKEE, OK (21) | 
| 
 | CLEVELAND, OK (27) | 
| 
 | CRAIG, OK (35) | 
| 
 | CREEK, OK (37) | 
| 
 | DELAWARE, OK (41) | 
| 
 | HUGHES, OK (63) | 
| 
 | KAY, OK (71) | 
| 
 | LINCOLN, OK (81) | 
| 
 | LOGAN, OK (83) | 
| 
 | MAYES, OK (97) | 
| 
 | MC CLAIN, OK (87) | 
| 
 | MC INTOSH, OK (91) | 
| 
 | MUSKOGEE, OK (101) | 
| 
 | NOBLE, OK (103) | 
| 
 | NOWATA, OK (105) | 
| 
 | OKFUSKEE, OK (107) | 
| 
 | OKLAHOMA, OK (109) | 
| 
 | OKMULGEE, OK (111) | 
| 
 | OSAGE, OK (113) | 
| 
 | OTTAWA, OK (115) | 
| 
 | PAWNEE, OK (117) | 
| 
 | PAYNE, OK (119) | 
| 
 | POTTAWATOMIE, OK (125) | 
| 
 | ROGERS, OK (131) | 
| 
 | SEMINOLE, OK (133) | 
| 
 | TULSA, OK (143) | 
| 
 | WAGONER, OK (145) | 
| 
 | WASHINGTON, OK (147) | 
| 360 - Anadarko Basin | ALFALFA, OK (3) | 
| 
 | BACA, CO (9) | 
| 
 | BEAVER, OK (7) | 
| 
 | BECKHAM, OK (9) | 
| 
 | BLAINE, OK (11) | 
| 
 | CADDO, OK (15) | 
| 
 | CANADIAN, OK (17) | 
| 
 | CARSON, TX (65) | 
| 
 | CLARK, KS (25) | 
| 
 | COMANCHE, KS (33) | 
| 
 | CUSTER, OK (39) | 
| 
 | DEWEY, OK (43) | 
| 
 | EDWARDS, KS (47) | 
| 
 | ELLIS, OK (45) | 
| 
 | FINNEY, KS (55) | 
| 
 | FORD, KS (57) | 
| 
 | GARFIELD, OK (47) | 
| 
 | GOVE, KS (63) | 
| 
 | GRADY, OK (51) | 
| 
 | GRANT, KS (67) | 
| 
 | GRANT, OK (53) | 
| 
 | GRAY, KS (69) | 
| 
 | GRAY, TX (179) | 
| 
 | GREELEY, KS (71) | 
| 
 | HAMILTON, KS (75) | 
| 
 | HANSFORD, TX (195) | 
| 
 | HARPER, OK (59) | 
| 
 | HASKELL, KS (81) | 
| 
 | HEMPHILL, TX (211) | 
| 
 | HODGEMAN, KS (83) | 
| 
 | HUTCHINSON, TX (233) | 
| 
 | KEARNY, KS (93) | 
| 
 | KINGFISHER, OK (73) | 
| 
 | KIOWA, KS (97) | 
| 
 | LANE, KS (101) | 
| 
 | LIPSCOMB, TX (295) | 
| 
 | LOGAN, KS (109) | 
| 
 | MAJOR, OK (93) | 
| 
 | MEADE, KS (119) | 
| 
 | MOORE, TX (341) | 
| 
 | MORTON, KS (129) | 
| 
 | NESS, KS (135) | 
| 
 | OCHILTREE, TX (357) | 
| 
 | POTTER, TX (375) | 
| 
 | PROWERS, CO (99) | 
| 
 | ROBERTS, TX (393) | 
| 
 | ROGER MILLS, OK (129) | 
| 
 | SCOTT, KS (171) | 
| 
 | SEWARD, KS (175) | 
| 
 | SHERMAN, TX (421) | 
| 
 | STANTON, KS (187) | 
| 
 | STEVENS, KS (189) | 
| 
 | TEXAS, OK (139) | 
| 
 | WALLACE, KS (199) | 
| 
 | WASHITA, OK (149) | 
| 
 | WHEELER, TX (483) | 
| 
 | WICHITA, KS (203) | 
| 
 | WOODS, OK (151) | 
| 
 | WOODWARD, OK (153) | 
| 365 - Cherokee Basin | ALLEN, KS (1) | 
| 
 | BARTON, MO (11) | 
| 
 | BOURBON, KS (11) | 
| 
 | CEDAR, MO (39) | 
| 
 | CHAUTAUQUA, KS (19) | 
| 
 | CHEROKEE, KS (21) | 
| 
 | CRAWFORD, KS (37) | 
| 
 | ELK, KS (49) | 
| 
 | GREENWOOD, KS (73) | 
| 
 | LABETTE, KS (99) | 
| 
 | MONTGOMERY, KS (125) | 
| 
 | NEOSHO, KS (133) | 
| 
 | ST CLAIR, MO (185) | 
| 
 | VERNON, MO (217) | 
| 
 | WILSON, KS (205) | 
| 
 | WOODSON, KS (207) | 
| 370 - Nemaha Anticline | BUTLER, KS (15) | 
| 
 | CASS, NE (25) | 
| 
 | CHASE, KS (17) | 
| 
 | COWLEY, KS (35) | 
| 
 | DOUGLAS, NE (55) | 
| 
 | GAGE, NE (67) | 
| 
 | GEARY, KS (61) | 
| 
 | JOHNSON, NE (97) | 
| 
 | MARSHALL, KS (117) | 
| 
 | MORRIS, KS (127) | 
| 
 | NEMAHA, KS (131) | 
| 
 | OTOE, NE (131) | 
| 
 | PAWNEE, NE (133) | 
| 
 | POTTAWATOMIE, KS (149) | 
| 
 | RILEY, KS (161) | 
| 
 | SARPY, NE (153) | 
| 375 - Sedgwick Basin | BARBER, KS (7) | 
| 
 | HARPER, KS (77) | 
| 
 | HARVEY, KS (79) | 
| 
 | KINGMAN, KS (95) | 
| 
 | MARION, KS (115) | 
| 
 | MC PHERSON, KS (113) | 
| 
 | RENO, KS (155) | 
| 
 | SEDGWICK, KS (173) | 
| 
 | SUMNER, KS (191) | 
| 380 - Salina Basin | ADAMS, NE (1) | 
| 
 | ANTELOPE, NE (3) | 
| 
 | BLAINE, NE (9) | 
| 
 | BOONE, NE (11) | 
| 
 | BOYD, NE (15) | 
| 
 | BROWN, NE (17) | 
| 
 | BUFFALO, NE (19) | 
| 
 | BURT, NE (21) | 
| 
 | BUTLER, NE (23) | 
| 
 | CEDAR, NE (27) | 
| 
 | CLAY, KS (27) | 
| 
 | CLAY, NE (35) | 
| 
 | CLOUD, KS (29) | 
| 
 | COLFAX, NE (37) | 
| 
 | CUMING, NE (39) | 
| 
 | CUSTER, NE (41) | 
| 
 | DAKOTA, NE (43) | 
| 
 | DICKINSON, KS (41) | 
| 
 | DIXON, NE (51) | 
| 
 | DODGE, NE (53) | 
| 
 | FILLMORE, NE (59) | 
| 
 | FRANKLIN, NE (61) | 
| 
 | GARFIELD, NE (71) | 
| 
 | GREELEY, NE (77) | 
| 
 | HALL, NE (79) | 
| 
 | HAMILTON, NE (81) | 
| 
 | HARLAN, NE (83) | 
| 
 | HOLT, NE (89) | 
| 
 | HOWARD, NE (93) | 
| 
 | JEFFERSON, NE (95) | 
| 
 | JEWELL, KS (89) | 
| 
 | KEARNEY, NE (99) | 
| 
 | KEYA PAHA, NE (103) | 
| 
 | KNOX, NE (107) | 
| 
 | LANCASTER, NE (109) | 
| 
 | LINCOLN, KS (105) | 
| 
 | LOUP, NE (115) | 
| 
 | MADISON, NE (119) | 
| 
 | MERRICK, NE (121) | 
| 
 | MITCHELL, KS (123) | 
| 
 | NANCE, NE (125) | 
| 
 | NUCKOLLS, NE (129) | 
| 
 | OSBORNE, KS (141) | 
| 
 | OTTAWA, KS (143) | 
| 
 | PHELPS, NE (137) | 
| 
 | PIERCE, NE (139) | 
| 
 | PLATTE, NE (141) | 
| 
 | POLK, NE (143) | 
| 
 | REPUBLIC, KS (157) | 
| 
 | ROCK, NE (149) | 
| 
 | SALINE, KS (169) | 
| 
 | SALINE, NE (151) | 
| 
 | SAUNDERS, NE (155) | 
| 
 | SEWARD, NE (159) | 
| 
 | SHERMAN, NE (163) | 
| 
 | SMITH, KS (183) | 
| 
 | STANTON, NE (167) | 
| 
 | THAYER, NE (169) | 
| 
 | THURSTON, NE (173) | 
| 
 | VALLEY, NE (175) | 
| 
 | WASHINGTON, KS (201) | 
| 
 | WASHINGTON, NE (177) | 
| 
 | WAYNE, NE (179) | 
| 
 | WEBSTER, NE (181) | 
| 
 | WHEELER, NE (183) | 
| 
 | YORK, NE (185) | 
| 385 - Central Kansas Uplift | BARTON, KS (9) | 
| 
 | DECATUR, KS (39) | 
| 
 | ELLIS, KS (51) | 
| 
 | ELLSWORTH, KS (53) | 
| 
 | GRAHAM, KS (65) | 
| 
 | NORTON, KS (137) | 
| 
 | PAWNEE, KS (145) | 
| 
 | PHILLIPS, KS (147) | 
| 
 | PRATT, KS (151) | 
| 
 | RICE, KS (159) | 
| 
 | ROOKS, KS (163) | 
| 
 | RUSH, KS (165) | 
| 
 | RUSSELL, KS (167) | 
| 
 | SHERIDAN, KS (179) | 
| 
 | STAFFORD, KS (185) | 
| 
 | TREGO, KS (195) | 
| 390 - Chadron Arch | ARTHUR, NE (5) | 
| 
 | BOX BUTTE, NE (13) | 
| 
 | CHASE, NE (29) | 
| 
 | CHERRY, NE (31) | 
| 
 | DAWES, NE (45) | 
| 
 | DAWSON, NE (47) | 
| 
 | DUNDY, NE (57) | 
| 
 | FRONTIER, NE (63) | 
| 
 | FURNAS, NE (65) | 
| 
 | GOSPER, NE (73) | 
| 
 | GRANT, NE (75) | 
| 
 | HAYES, NE (85) | 
| 
 | HITCHCOCK, NE (87) | 
| 
 | HOOKER, NE (91) | 
| 
 | KEITH, NE (101) | 
| 
 | LINCOLN, NE (111) | 
| 
 | LOGAN, NE (113) | 
| 
 | MC PHERSON, NE (117) | 
| 
 | PERKINS, NE (135) | 
| 
 | RED WILLOW, NE (145) | 
| 
 | SHANNON, SD (113) | 
| 
 | SHERIDAN, NE (161) | 
| 
 | THOMAS, NE (171) | 
| 395 - Williston Basin | ADAMS, ND (1) | 
| 
 | BARNES, ND (3) | 
| 
 | BENSON, ND (5) | 
| 
 | BILLINGS, ND (7) | 
| 
 | BOTTINEAU, ND (9) | 
| 
 | BOWMAN, ND (11) | 
| 
 | BURKE, ND (13) | 
| 
 | BURLEIGH, ND (15) | 
| 
 | BUTTE, SD (19) | 
| 
 | CAMPBELL, SD (21) | 
| 
 | CASS, ND (17) | 
| 
 | CAVALIER, ND (19) | 
| 
 | CORSON, SD (31) | 
| 
 | DANIELS, MT (19) | 
| 
 | DAWSON, MT (21) | 
| 
 | DEWEY, SD (41) | 
| 
 | DICKEY, ND (21) | 
| 
 | DIVIDE, ND (23) | 
| 
 | DUNN, ND (25) | 
| 
 | EDDY, ND (27) | 
| 
 | EDMUNDS, SD (45) | 
| 
 | EMMONS, ND (29) | 
| 
 | FALLON, MT (25) | 
| 
 | FOSTER, ND (31) | 
| 
 | GARFIELD, MT (33) | 
| 
 | GOLDEN VALLEY, ND (33) | 
| 
 | GRAND FORKS, ND (35) | 
| 
 | GRANT, ND (37) | 
| 
 | GRIGGS, ND (39) | 
| 
 | HAAKON, SD (55) | 
| 
 | HARDING, SD (63) | 
| 
 | HETTINGER, ND (41) | 
| 
 | HUGHES, SD (65) | 
| 
 | JONES, SD (75) | 
| 
 | KIDDER, ND (43) | 
| 
 | LA MOURE, ND (45) | 
| 
 | LAWRENCE, SD (81) | 
| 
 | LOGAN, ND (47) | 
| 
 | MC CONE, MT (55) | 
| 
 | MC HENRY, ND (49) | 
| 
 | MC INTOSH, ND (51) | 
| 
 | MC KENZIE, ND (53) | 
| 
 | MC LEAN, ND (55) | 
| 
 | MC PHERSON, SD (89) | 
| 
 | MEADE, SD (93) | 
| 
 | MERCER, ND (57) | 
| 
 | MORTON, ND (59) | 
| 
 | MOUNTRAIL, ND (61) | 
| 
 | NELSON, ND (63) | 
| 
 | OLIVER, ND (65) | 
| 
 | PEMBINA, ND (67) | 
| 
 | PENNINGTON, SD (103) | 
| 
 | PERKINS, SD (105) | 
| 
 | PHILLIPS, MT (71) | 
| 
 | PIERCE, ND (69) | 
| 
 | POTTER, SD (107) | 
| 
 | PRAIRIE, MT (79) | 
| 
 | RAMSEY, ND (71) | 
| 
 | RANSOM, ND (73) | 
| 
 | RENVILLE, ND (75) | 
| 
 | RICHLAND, MT (83) | 
| 
 | RICHLAND, ND (77) | 
| 
 | ROLETTE, ND (79) | 
| 
 | ROOSEVELT, MT (85) | 
| 
 | SARGENT, ND (81) | 
| 
 | SHERIDAN, MT (91) | 
| 
 | SHERIDAN, ND (83) | 
| 
 | SIOUX, ND (85) | 
| 
 | SLOPE, ND (87) | 
| 
 | STANLEY, SD (117) | 
| 
 | STARK, ND (89) | 
| 
 | STEELE, ND (91) | 
| 
 | STUTSMAN, ND (93) | 
| 
 | SULLY, SD (119) | 
| 
 | TOWNER, ND (95) | 
| 
 | TRAILL, ND (97) | 
| 
 | VALLEY, MT (105) | 
| 
 | WALSH, ND (99) | 
| 
 | WALWORTH, SD (129) | 
| 
 | WARD, ND (101) | 
| 
 | WELLS, ND (103) | 
| 
 | WIBAUX, MT (109) | 
| 
 | WILLIAMS, ND (105) | 
| 
 | ZIEBACH, SD (137) | 
| 400 - Ouachita Folded Belt | ATOKA, OK (5) | 
| 
 | BELL, TX (27) | 
| 
 | BEXAR, TX (29) | 
| 
 | BRYAN, OK (13) | 
| 
 | CHOCTAW, OK (23) | 
| 
 | CLARK, AR (19) | 
| 
 | COLLIN, TX (85) | 
| 
 | COMAL, TX (91) | 
| 
 | DALLAS, AR (39) | 
| 
 | DALLAS, TX (113) | 
| 
 | ELLIS, TX (139) | 
| 
 | FANNIN, TX (147) | 
| 
 | GARLAND, AR (51) | 
| 
 | GRANT, AR (53) | 
| 
 | HAYS, TX (209) | 
| 
 | HILL, TX (217) | 
| 
 | HOT SPRING, AR (59) | 
| 
 | HOWARD, AR (61) | 
| 
 | KINNEY, TX (271) | 
| 
 | LAMAR, TX (277) | 
| 
 | LONOKE, AR (85) | 
| 
 | MC CURTAIN, OK (89) | 
| 
 | MC LENNAN, TX (309) | 
| 
 | MEDINA, TX (325) | 
| 
 | MONTGOMERY, AR (97) | 
| 
 | PIKE, AR (109) | 
| 
 | POLK, AR (113) | 
| 
 | PULASKI, AR (119) | 
| 
 | PUSHMATAHA, OK (127) | 
| 
 | RED RIVER, TX (387) | 
| 
 | SALINE, AR (125) | 
| 
 | SEVIER, AR (133) | 
| 
 | TRAVIS, TX (453) | 
| 
 | UVALDE, TX (463) | 
| 
 | WILLIAMSON, TX (491) | 
| 405 - Kerr Basin | BANDERA, TX (19) | 
| 
 | KENDALL, TX (259) | 
| 
 | KERR, TX (265) | 
| 
 | REAL, TX (385) | 
| 410 - Llano Uplift | BLANCO, TX (31) | 
| 
 | BURNET, TX (53) | 
| 
 | GILLESPIE, TX (171) | 
| 
 | LLANO, TX (299) | 
| 
 | MASON, TX (319) | 
| 
 | MC CULLOCH, TX (307) | 
| 
 | SAN SABA, TX (411) | 
| 415 - Strawn Basin | BOSQUE, TX (35) | 
| 
 | CORYELL, TX (99) | 
| 
 | ERATH, TX (143) | 
| 
 | HAMILTON, TX (193) | 
| 
 | HOOD, TX (221) | 
| 
 | JOHNSON, TX (251) | 
| 
 | SOMERVELL, TX (425) | 
| 
 | TARRANT, TX (439) | 
| 420 - Fort Worth Syncline | CLAY, TX (77) | 
| 
 | DENTON, TX (121) | 
| 
 | JACK, TX (237) | 
| 
 | MONTAGUE, TX (337) | 
| 
 | PARKER, TX (367) | 
| 
 | WISE, TX (497) | 
| 425 - Bend Arch | ARCHER, TX (9) | 
| 
 | BAYLOR, TX (23) | 
| 
 | BROWN, TX (49) | 
| 
 | CALLAHAN, TX (59) | 
| 
 | COLEMAN, TX (83) | 
| 
 | COMANCHE, TX (93) | 
| 
 | EASTLAND, TX (133) | 
| 
 | LAMPASAS, TX (281) | 
| 
 | MILLS, TX (333) | 
| 
 | PALO PINTO, TX (363) | 
| 
 | SHACKELFORD, TX (417) | 
| 
 | STEPHENS, TX (429) | 
| 
 | THROCKMORTON, TX (447) | 
| 
 | YOUNG, TX (503) | 
| 430 - Permian Basin | ANDREWS, TX (3) | 
| 
 | BAILEY, TX (17) | 
| 
 | BORDEN, TX (33) | 
| 
 | BREWSTER, TX (43) | 
| 
 | CHAVES, NM (5) | 
| 
 | COCHRAN, TX (79) | 
| 
 | COKE, TX (81) | 
| 
 | CONCHO, TX (95) | 
| 
 | COTTLE, TX (101) | 
| 
 | CRANE, TX (103) | 
| 
 | CROCKETT, TX (105) | 
| 
 | CROSBY, TX (107) | 
| 
 | CULBERSON, TX (109) | 
| 
 | DAWSON, TX (115) | 
| 
 | DICKENS, TX (125) | 
| 
 | ECTOR, TX (135) | 
| 
 | EDDY, NM (15) | 
| 
 | EDWARDS, TX (137) | 
| 
 | FISHER, TX (151) | 
| 
 | FLOYD, TX (153) | 
| 
 | GAINES, TX (165) | 
| 
 | GARZA, TX (169) | 
| 
 | GLASSCOCK, TX (173) | 
| 
 | HALE, TX (189) | 
| 
 | HASKELL, TX (207) | 
| 
 | HOCKLEY, TX (219) | 
| 
 | HOWARD, TX (227) | 
| 
 | HUDSPETH, TX (229) | 
| 
 | IRION, TX (235) | 
| 
 | JEFF DAVIS, TX (243) | 
| 
 | JONES, TX (253) | 
| 
 | KENT, TX (263) | 
| 
 | KIMBLE, TX (267) | 
| 
 | KING, TX (269) | 
| 
 | KNOX, TX (275) | 
| 
 | LAMB, TX (279) | 
| 
 | LEA, NM (25) | 
| 
 | LOVING, TX (301) | 
| 
 | LUBBOCK, TX (303) | 
| 
 | LYNN, TX (305) | 
| 
 | MARTIN, TX (317) | 
| 
 | MENARD, TX (327) | 
| 
 | MIDLAND, TX (329) | 
| 
 | MITCHELL, TX (335) | 
| 
 | MOTLEY, TX (345) | 
| 
 | NOLAN, TX (353) | 
| 
 | PECOS, TX (371) | 
| 
 | PRESIDIO, TX (377) | 
| 
 | REAGAN, TX (383) | 
| 
 | REEVES, TX (389) | 
| 
 | ROOSEVELT, NM (41) | 
| 
 | RUNNELS, TX (399) | 
| 
 | SCHLEICHER, TX (413) | 
| 
 | SCURRY, TX (415) | 
| 
 | STERLING, TX (431) | 
| 
 | STONEWALL, TX (433) | 
| 
 | SUTTON, TX (435) | 
| 
 | TAYLOR, TX (441) | 
| 
 | TERRELL, TX (443) | 
| 
 | TERRY, TX (445) | 
| 
 | TOM GREEN, TX (451) | 
| 
 | UPTON, TX (461) | 
| 
 | VAL VERDE, TX (465) | 
| 
 | WARD, TX (475) | 
| 
 | WINKLER, TX (495) | 
| 
 | YOAKUM, TX (501) | 
| 435 - Palo Duro Basin | ARMSTRONG, TX (11) | 
| 
 | BRISCOE, TX (45) | 
| 
 | CASTRO, TX (69) | 
| 
 | CHILDRESS, TX (75) | 
| 
 | CIMARRON, OK (25) | 
| 
 | COLLINGSWORTH, TX (87) | 
| 
 | CURRY, NM (9) | 
| 
 | DALLAM, TX (111) | 
| 
 | DE BACA, NM (11) | 
| 
 | DEAF SMITH, TX (117) | 
| 
 | DONLEY, TX (129) | 
| 
 | FOARD, TX (155) | 
| 
 | GUADALUPE, NM (19) | 
| 
 | HALL, TX (191) | 
| 
 | HARDEMAN, TX (197) | 
| 
 | HARMON, OK (57) | 
| 
 | HARTLEY, TX (205) | 
| 
 | JACKSON, OK (65) | 
| 
 | OLDHAM, TX (359) | 
| 
 | PARMER, TX (369) | 
| 
 | QUAY, NM (37) | 
| 
 | RANDALL, TX (381) | 
| 
 | SAN MIGUEL, NM (47) | 
| 
 | SWISHER, TX (437) | 
| 
 | TILLMAN, OK (141) | 
| 
 | WICHITA, TX (485) | 
| 
 | WILBARGER, TX (487) | 
| 445 - Sierra Grande Uplift | HARDING, NM (21) | 
| 
 | UNION, NM (59) | 
| 450 - Las Animas Arch | BENT, CO (11) | 
| 
 | CHEYENNE, CO (17) | 
| 
 | CHEYENNE, KS (23) | 
| 
 | KIOWA, CO (61) | 
| 
 | KIT CARSON, CO (63) | 
| 
 | OTERO, CO (89) | 
| 
 | RAWLINS, KS (153) | 
| 
 | SHERMAN, KS (181) | 
| 
 | THOMAS, KS (193) | 
| 455 - Las Vegas-Raton Basin | COLFAX, NM (7) | 
| 
 | CUSTER, CO (27) | 
| 
 | HUERFANO, CO (55) | 
| 
 | LAS ANIMAS, CO (71) | 
| 
 | MORA, NM (33) | 
| 460 - Estancia Basin | BERNALILLO, NM (1) | 
| 
 | SANTA FE, NM (49) | 
| 
 | TORRANCE, NM (57) | 
| 465 - Orogrande Basin | DONA ANA, NM (13) | 
| 
 | EL PASO, TX (141) | 
| 
 | LINCOLN, NM (27) | 
| 
 | OTERO, NM (35) | 
| 
 | SIERRA, NM (51) | 
| 
 | SOCORRO, NM (53) | 
| 470 - Pedregosa Basin | COCHISE, AZ (3) | 
| 
 | HIDALGO, NM (23) | 
| 475 - Basin-And-Range Province | CATRON, NM (3) | 
| 
 | GILA, AZ (7) | 
| 
 | GRAHAM, AZ (9) | 
| 
 | GRANT, NM (17) | 
| 
 | GREENLEE, AZ (11) | 
| 
 | LA PAZ, AZ (12) | 
| 
 | LUNA, NM (29) | 
| 
 | MARICOPA, AZ (13) | 
| 
 | PIMA, AZ (19) | 
| 
 | PINAL, AZ (21) | 
| 
 | SANTA CRUZ, AZ (23) | 
| 
 | YAVAPAI, AZ (25) | 
| 
 | YUMA, AZ (27) | 
| 500 - Sweetgrass Arch | CASCADE, MT (13) | 
| 
 | CHOUTEAU, MT (15) | 
| 
 | GLACIER, MT (35) | 
| 
 | HILL, MT (41) | 
| 
 | JUDITH BASIN, MT (45) | 
| 
 | LIBERTY, MT (51) | 
| 
 | PONDERA, MT (73) | 
| 
 | TETON, MT (99) | 
| 
 | TOOLE, MT (101) | 
| 503 - North Western Overthrust | FLATHEAD, MT (29) | 
| 
 | LEWIS AND CLARK, MT (49) | 
| 505 - Montana Folded Belt | BEAVERHEAD, MT (1) | 
| 
 | BROADWATER, MT (7) | 
| 
 | DEER LODGE, MT (23) | 
| 
 | GALLATIN, MT (31) | 
| 
 | GRANITE, MT (39) | 
| 
 | JEFFERSON, MT (43) | 
| 
 | LAKE, MT (47) | 
| 
 | LINCOLN, MT (53) | 
| 
 | MADISON, MT (57) | 
| 
 | MEAGHER, MT (59) | 
| 
 | MINERAL, MT (61) | 
| 
 | MISSOULA, MT (63) | 
| 
 | PARK, MT (67) | 
| 
 | POWELL, MT (77) | 
| 
 | RAVALLI, MT (81) | 
| 
 | SANDERS, MT (89) | 
| 
 | SILVER BOW, MT (93) | 
| 
 | YELLOWSTONE NATIONAL PARK, MT (113) | 
| 507 - Central Western Overthrust | BEAR LAKE, ID (7) | 
| 
 | BONNEVILLE, ID (19) | 
| 
 | CARIBOU, ID (29) | 
| 
 | CLARK, ID (33) | 
| 
 | FREMONT, ID (43) | 
| 
 | JEFFERSON, ID (51) | 
| 
 | LINCOLN, WY (23) | 
| 
 | MADISON, ID (65) | 
| 
 | MORGAN, UT (29) | 
| 
 | RICH, UT (33) | 
| 
 | SUMMIT, UT (43) | 
| 
 | TETON, ID (81) | 
| 
 | UINTA, WY (41) | 
| 509 - South Western Overthrust | BEAVER, UT (1) | 
| 
 | CLARK, NV (3) | 
| 
 | IRON, UT (21) | 
| 
 | JUAB, UT (23) | 
| 
 | LINCOLN, NV (17) | 
| 
 | MILLARD, UT (27) | 
| 
 | UTAH, UT (49) | 
| 
 | WASHINGTON, UT (53) | 
| 510 - Central Montana Uplift | BLAINE, MT (5) | 
| 
 | FERGUS, MT (27) | 
| 
 | GOLDEN VALLEY, MT (37) | 
| 
 | MUSSELSHELL, MT (65) | 
| 
 | PETROLEUM, MT (69) | 
| 
 | ROSEBUD, MT (87) | 
| 
 | STILLWATER, MT (95) | 
| 
 | SWEET GRASS, MT (97) | 
| 
 | TREASURE, MT (103) | 
| 
 | WHEATLAND, MT (107) | 
| 
 | YELLOWSTONE, MT (111) | 
| 515 - Powder River Basin | BIG HORN, MT (3) | 
| 
 | CAMPBELL, WY (5) | 
| 
 | CARTER, MT (11) | 
| 
 | CONVERSE, WY (9) | 
| 
 | CROOK, WY (11) | 
| 
 | CUSTER, MT (17) | 
| 
 | CUSTER, SD (33) | 
| 
 | FALL RIVER, SD (47) | 
| 
 | JOHNSON, WY (19) | 
| 
 | NIOBRARA, WY (27) | 
| 
 | POWDER RIVER, MT (75) | 
| 
 | SHERIDAN, WY (33) | 
| 
 | WESTON, WY (45) | 
| 520 - Big Horn Basin | BIG HORN, WY (3) | 
| 
 | CARBON, MT (9) | 
| 
 | HOT SPRINGS, WY (17) | 
| 
 | PARK, WY (29) | 
| 
 | WASHAKIE, WY (43) | 
| 525 - Yellowstone Province | TETON, WY (39) | 
| 
 | YELLOWSTONE NATIONAL PARK, ID (89) | 
| 
 | YELLOWSTONE NATIONAL PARK, WY (47) | 
| 530 - Wind River Basin | FREMONT, WY (13) | 
| 
 | NATRONA, WY (25) | 
| 535 - Green River Basin | ALBANY, WY (1) | 
| 
 | CARBON, WY (7) | 
| 
 | MOFFAT, CO (81) | 
| 
 | ROUTT, CO (107) | 
| 
 | SUBLETTE, WY (35) | 
| 
 | SWEETWATER, WY (37) | 
| 540 - Denver Basin | ADAMS, CO (1) | 
| 
 | ARAPAHOE, CO (5) | 
| 
 | BANNER, NE (7) | 
| 
 | BOULDER, CO (13) | 
| 
 | CHEYENNE, NE (33) | 
| 
 | CROWLEY, CO (25) | 
| 
 | DENVER, CO (31) | 
| 
 | DEUEL, NE (49) | 
| 
 | DOUGLAS, CO (35) | 
| 
 | EL PASO, CO (41) | 
| 
 | ELBERT, CO (39) | 
| 
 | FREMONT, CO (43) | 
| 
 | GILPIN, CO (47) | 
| 
 | GARDEN, NE (69) | 
| 
 | GOSHEN, WY (15) | 
| 
 | JEFFERSON, CO (59) | 
| 
 | KIMBALL, NE (105) | 
| 
 | LARAMIE, WY (21) | 
| 
 | LARIMER, CO (69) | 
| 
 | LINCOLN, CO (73) | 
| 
 | LOGAN, CO (75) | 
| 
 | MORGAN, CO (87) | 
| 
 | MORRILL, NE (123) | 
| 
 | PHILLIPS, CO (95) | 
| 
 | PLATTE, WY (31) | 
| 
 | PUEBLO, CO (101) | 
| 
 | SCOTTS BLUFF, NE (157) | 
| 
 | SEDGWICK, CO (115) | 
| 
 | SIOUX, NE (165) | 
| 
 | TELLER, CO (119) | 
| 
 | WASHINGTON, CO (121) | 
| 
 | WELD, CO (123) | 
| 
 | YUMA, CO (125) | 
| 545 - North Park Basin | GRAND, CO (49) | 
| 
 | JACKSON, CO (57) | 
| 550 - South Park Basin | PARK, CO (93) | 
| 555 - Eagle Basin | CHAFFEE, CO (15) | 
| 
 | CLEAR CREEK, CO (19) | 
| 
 | EAGLE, CO (37) | 
| 
 | LAKE, CO (65) | 
| 
 | SUMMIT, CO (117) | 
| 560 - San Luis Basin | ALAMOSA, CO (3) | 
| 
 | CONEJOS, CO (21) | 
| 
 | COSTILLA, CO (23) | 
| 
 | RIO GRANDE, CO (105) | 
| 
 | SAGUACHE, CO (109) | 
| 
 | TAOS, NM (55) | 
| 565 - San Juan Mountains Prov | HINSDALE, CO (53) | 
| 
 | MINERAL, CO (79) | 
| 
 | OURAY, CO (91) | 
| 
 | SAN JUAN, CO (111) | 
| 575 - Uinta Basin | CARBON, UT (7) | 
| 
 | DAGGETT, UT (9) | 
| 
 | DUCHESNE, UT (13) | 
| 
 | UINTAH, UT (47) | 
| 
 | WASATCH, UT (51) | 
| 580 - San Juan Basin | ARCHULETA, CO (7) | 
| 
 | CIBOLA, NM (6) | 
| 
 | LA PLATA, CO (67) | 
| 
 | LOS ALAMOS, NM (28) | 
| 
 | MC KINLEY, NM (31) | 
| 
 | RIO ARRIBA, NM (39) | 
| 
 | SAN JUAN, NM (45) | 
| 
 | SANDOVAL, NM (43) | 
| 
 | VALENCIA, NM (61) | 
| 585 - Paradox Basin | DOLORES, CO (33) | 
| 
 | EMERY, UT (15) | 
| 
 | GARFIELD, UT (17) | 
| 
 | GRAND, UT (19) | 
| 
 | MONTEZUMA, CO (83) | 
| 
 | MONTROSE, CO (85) | 
| 
 | SAN JUAN, UT (37) | 
| 
 | SAN MIGUEL, CO (113) | 
| 
 | WAYNE, UT (55) | 
| 590 - Black Mesa Basin | APACHE, AZ (1) | 
| 
 | NAVAJO, AZ (17) | 
| 595 - Piceance Basin | DELTA, CO (29) | 
| 
 | GARFIELD, CO (45) | 
| 
 | GUNNISON, CO (51) | 
| 
 | MESA, CO (77) | 
| 
 | PITKIN, CO (97) | 
| 
 | RIO BLANCO, CO (103) | 
| 600 - N. Cascades-Okanagan Prov | CHELAN, WA (7) | 
| 
 | FERRY, WA (19) | 
| 
 | OKANOGAN, WA (47) | 
| 
 | PEND OREILLE, WA (51) | 
| 
 | SAN JUAN, WA (55) | 
| 
 | SKAGIT, WA (57) | 
| 
 | STEVENS, WA (65) | 
| 605 - Eastern Columbia Basin | ADAMS, WA (1) | 
| 
 | ASOTIN, WA (3) | 
| 
 | BENTON, WA (5) | 
| 
 | COLUMBIA, WA (13) | 
| 
 | CROOK, OR (13) | 
| 
 | DOUGLAS, WA (17) | 
| 
 | FRANKLIN, WA (21) | 
| 
 | GARFIELD, WA (23) | 
| 
 | GILLIAM, OR (21) | 
| 
 | GRANT, WA (25) | 
| 
 | HOOD RIVER, OR (27) | 
| 
 | JEFFERSON, OR (31) | 
| 
 | KITTITAS, WA (37) | 
| 
 | KLICKITAT, WA (39) | 
| 
 | LATAH, ID (57) | 
| 
 | LEWIS, ID (61) | 
| 
 | LINCOLN, WA (43) | 
| 
 | MORROW, OR (49) | 
| 
 | NEZ PERCE, ID (69) | 
| 
 | SHERMAN, OR (55) | 
| 
 | SKAMANIA, WA (59) | 
| 
 | SPOKANE, WA (63) | 
| 
 | UMATILLA, OR (59) | 
| 
 | UNION, OR (61) | 
| 
 | WALLA WALLA, WA (71) | 
| 
 | WALLOWA, OR (63) | 
| 
 | WASCO, OR (65) | 
| 
 | WHEELER, OR (69) | 
| 
 | WHITMAN, WA (75) | 
| 
 | YAKIMA, WA (77) | 
| 610 - Idaho Mountains Province | BENEWAH, ID (9) | 
| 
 | BOISE, ID (15) | 
| 
 | BONNER, ID (17) | 
| 
 | BOUNDARY, ID (21) | 
| 
 | CLEARWATER, ID (35) | 
| 
 | CUSTER, ID (37) | 
| 
 | IDAHO, ID (49) | 
| 
 | KOOTENAI, ID (55) | 
| 
 | LEMHI, ID (59) | 
| 
 | SHOSHONE, ID (79) | 
| 
 | VALLEY, ID (85) | 
| 615 - Snake River Basin | ADA, ID (1) | 
| 
 | ADAMS, ID (3) | 
| 
 | BAKER, OR (1) | 
| 
 | BANNOCK, ID (5) | 
| 
 | BINGHAM, ID (11) | 
| 
 | BLAINE, ID (13) | 
| 
 | BUTTE, ID (23) | 
| 
 | CAMAS, ID (25) | 
| 
 | CANYON, ID (27) | 
| 
 | ELMORE, ID (39) | 
| 
 | GEM, ID (45) | 
| 
 | GOODING, ID (47) | 
| 
 | GRANT, OR (23) | 
| 
 | JEROME, ID (53) | 
| 
 | LINCOLN, ID (63) | 
| 
 | MALHEUR, OR (45) | 
| 
 | MINIDOKA, ID (67) | 
| 
 | OWYHEE, ID (73) | 
| 
 | PAYETTE, ID (75) | 
| 
 | POWER, ID (77) | 
| 
 | TWIN FALLS, ID (83) | 
| 
 | WASHINGTON, ID (87) | 
| 620 - Southern Oregon Basin | DESCHUTES, OR (17) | 
| 
 | HARNEY, OR (25) | 
| 
 | KLAMATH, OR (35) | 
| 
 | LAKE, OR (37) | 
| 
 | LASSEN, CA (35) | 
| 
 | MODOC, CA (49) | 
| 
 | WASHOE, NV (31) | 
| 625 - Great Basin Province | BOX ELDER, UT (3) | 
| 
 | CARSON CITY, NV (510) | 
| 
 | CASSIA, ID (31) | 
| 
 | CHURCHILL, NV (1) | 
| 
 | DOUGLAS, NV (5) | 
| 
 | ELKO, NV (7) | 
| 
 | ESMERALDA, NV (9) | 
| 
 | EUREKA, NV (11) | 
| 
 | FRANKLIN, ID (41) | 
| 
 | HUMBOLDT, NV (13) | 
| 
 | INYO, CA (27) | 
| 
 | LANDER, NV (15) | 
| 
 | LYON, NV (19) | 
| 
 | MINERAL, NV (21) | 
| 
 | MONO, CA (51) | 
| 
 | NYE, NV (23) | 
| 
 | ONEIDA, ID (71) | 
| 
 | PERSHING, NV (27) | 
| 
 | STOREY, NV (29) | 
| 
 | TOOELE, UT (45) | 
| 
 | WHITE PINE, NV (33) | 
| 630 - Overthrust&Wasatch Uplift | CACHE, UT (5) | 
| 
 | DAVIS, UT (11) | 
| 
 | PIUTE, UT (31) | 
| 
 | SALT LAKE, UT (35) | 
| 
 | SANPETE, UT (39) | 
| 
 | SEVIER, UT (41) | 
| 
 | WEBER, UT (57) | 
| 635 - Plateau Sedimentary Prov | COCONINO, AZ (5) | 
| 
 | KANE, UT (25) | 
| 
 | MOHAVE, AZ (15) | 
| 640 - Mojave Basin | SAN BERNARDINO, CA (71) | 
| 645 - Salton Basin | IMPERIAL, CA (25) | 
| 
 | RIVERSIDE, CA (65) | 
| 650 - Sierra Nevada Province | ALPINE, CA (3) | 
| 
 | AMADOR, CA (5) | 
| 
 | CALAVERAS, CA (9) | 
| 
 | EL DORADO, CA (17) | 
| 
 | MARIPOSA, CA (43) | 
| 
 | NEVADA, CA (57) | 
| 
 | PLACER, CA (61) | 
| 
 | PLUMAS, CA (63) | 
| 
 | SIERRA, CA (91) | 
| 
 | TUOLUMNE, CA (109) | 
| 
 | YUBA, CA (115) | 
| 700 - Bellingham Basin | WHATCOM, WA (73) | 
| 705 - Puget Sound Province | ISLAND, WA (29) | 
| 
 | KING, WA (33) | 
| 
 | KITSAP, WA (35) | 
| 
 | MASON, WA (45) | 
| 
 | PIERCE, WA (53) | 
| 
 | SNOHOMISH, WA (61) | 
| 710 - Western Columbia Basin | BENTON, OR (3) | 
| 
 | CLACKAMAS, OR (5) | 
| 
 | CLALLAM, WA (9) | 
| 
 | CLARK, WA (11) | 
| 
 | CLATSOP, OR (7) | 
| 
 | COLUMBIA, OR (9) | 
| 
 | COOS, OR (11) | 
| 
 | COWLITZ, WA (15) | 
| 
 | CURRY, OR (15) | 
| 
 | DOUGLAS, OR (19) | 
| 
 | GRAYS HARBOR, WA (27) | 
| 
 | JEFFERSON, WA (31) | 
| 
 | LANE, OR (39) | 
| 
 | LEWIS, WA (41) | 
| 
 | LINCOLN, OR (41) | 
| 
 | LINN, OR (43) | 
| 
 | MARION, OR (47) | 
| 
 | MULTNOMAH, OR (51) | 
| 
 | PACIFIC, WA (49) | 
| 
 | POLK, OR (53) | 
| 
 | THURSTON, WA (67) | 
| 
 | TILLAMOOK, OR (57) | 
| 
 | WAHKIAKUM, WA (69) | 
| 
 | WASHINGTON, OR (67) | 
| 
 | YAMHILL, OR (71) | 
| 715 - Klamath Mountains Province | DEL NORTE, CA (15) | 
| 
 | JACKSON, OR (29) | 
| 
 | JOSEPHINE, OR (33) | 
| 
 | SHASTA, CA (89) | 
| 
 | SISKIYOU, CA (93) | 
| 
 | TRINITY, CA (105) | 
| 720 - Eel River Basin | HUMBOLDT, CA (23) | 
| 725 - Northern Coast Range Prov | ALAMEDA, CA (1) | 
| 
 | LAKE, CA (33) | 
| 
 | MENDOCINO, CA (45) | 
| 
 | NAPA, CA (55) | 
| 
 | SANTA CLARA, CA (85) | 
| 
 | SONOMA, CA (97) | 
| 730 - Sacramento Basin | BUTTE, CA (7) | 
| 
 | COLUSA, CA (11) | 
| 
 | CONTRA COSTA, CA (13) | 
| 
 | GLENN, CA (21) | 
| 
 | SACRAMENTO, CA (67) | 
| 
 | SAN JOAQUIN, CA (77) | 
| 
 | SOLANO, CA (95) | 
| 
 | SUTTER, CA (101) | 
| 
 | TEHAMA, CA (103) | 
| 
 | YOLO, CA (113) | 
| 735 - Santa Cruz Basin | MARIN, CA (41) | 
| 
 | SAN FRANCISCO, CA (75) | 
| 
 | SAN MATEO, CA (81) | 
| 
 | SANTA CRUZ, CA (87) | 
| 740 - Coastal Basins | MONTEREY, CA (53) | 
| 
 | SAN LUIS OBISPO, CA (79) | 
| 745 - San Joaquin Basin | 
 | 
| 
 | FRESNO, CA (19) | 
| 
 | KERN, CA (29) | 
| 
 | KINGS, CA (31) | 
| 
 | MADERA, CA (39) | 
| 
 | MERCED, CA (47) | 
| 
 | SAN BENITO, CA (69) | 
| 
 | STANISLAUS, CA (99) | 
| 
 | TULARE, CA (107) | 
| 750 - Santa Maria Basin | SANTA BARBARA, CA (83) | 
| 755 - Ventura Basin | 
 | 
| 
 | VENTURA, CA (111) | 
| 760 - Los Angeles Basin | 
 | 
| 
 | LOS ANGELES, CA (37) | 
| 
 | ORANGE, CA (59) | 
| 765 - Capistrano Basin | SAN DIEGO, CA (73) | 
| 800 - Southeastern Alaska Provinces | ATLIN, AK (15) | 
| 
 | BRADFIELD CANAL, AK (47) | 
| 
 | CRAIG, AK (71) | 
| 
 | DIXON ENTRANCE, AK (79) | 
| 
 | FAIRWEATHER, AK (85) | 
| 
 | JUNEAU, AK (123) | 
| 
 | KETCHIKAN, AK (135) | 
| 
 | PETERSBURG, AK (201) | 
| 
 | PORT ALEXANDER, AK (209) | 
| 
 | PRINCE RUPERT, AK (215) | 
| 
 | SITKA, AK (241) | 
| 
 | SKAGWAY, AK (243) | 
| 
 | SUMDUM, AK (257) | 
| 
 | TAKU RIVER, AK (265) | 
| 810 - Gulf of Alaska Basin | BERING GLACIER, AK (33) | 
| 
 | CORDOVA, AK (69) | 
| 
 | ICY BAY, AK (115) | 
| 
 | MT. ST. ELIAS, AK (181) | 
| 
 | YAKUTAT, AK (305) | 
| 815 - Copper River Basin | GULKANA, AK (99) | 
| 
 | MCCARTHY, AK (159) | 
| 
 | SEWARD, AK (233) | 
| 
 | TALKEETNA MTS., AK (269) | 
| 
 | VALDEZ, AK (299) | 
| 820 - AK Cook Inlet Basin | AFOGNAK, AK (3) | 
| 
 | ANCHORAGE, AK (9) | 
| 
 | BLYING SOUND, AK (45) | 
| 
 | ILIAMNA, AK (121) | 
| 
 | KENAI PENINSULA, AK (609) | 
| 
 | KENAI PENINSULA, AK (721) | 
| 
 | KENAI PENINSULA, AK (733) | 
| 
 | KENAI PENINSULA, AK (831) | 
| 
 | KENAI PENINSULA, AK (883) | 
| 
 | KENAI, AK (133) | 
| 
 | LAKE CLARK, AK (149) | 
| 
 | LIME HILLS, AK (151) | 
| 
 | SELDOVIA, AK (231) | 
| 
 | TALKEETNA, AK (267) | 
| 
 | TYONEK, AK (283) | 
| 825 - Alaska Peninsula Province | 
 | 
| 
 | CHIGNIK, AK (61) | 
| 
 | KARLUK, AK (129) | 
| 
 | MT. KATMAI, AK (175) | 
| 
 | STEPOVAK BAY, AK (251) | 
| 
 | SUTWIK ISLAND, AK (261) | 
| 
 | UGASHIK, AK (285) | 
| 830 - Yukon-Porcupine Province | BEAVER, AK (27) | 
| 
 | BETTLES, AK (37) | 
| 
 | BLACK RIVER, AK (43) | 
| 
 | CHARLEY RIVER, AK (59) | 
| 
 | CHRISTIAN, AK (63) | 
| 
 | CIRCLE, AK (65) | 
| 
 | COLEEN, AK (67) | 
| 
 | FORT YUKON, AK (91) | 
| 840 - Yukon-Koyukuk Province | BAIRD INLET, AK (19) | 
| 
 | BENDELEBEN, AK (31) | 
| 
 | BETHEL, AK (35) | 
| 
 | BLACK, AK (41) | 
| 
 | CANDLE, AK (51) | 
| 
 | DILLINGHAM, AK (77) | 
| 
 | GOODNEWS BAY, AK (97) | 
| 
 | HAGEMEISTER ISLAND, AK (101) | 
| 
 | HOLY CROSS, AK (107) | 
| 
 | HOOPER BAY, AK (109) | 
| 
 | HUGHES, AK (113) | 
| 
 | IDITAROD, AK (117) | 
| 
 | KATEEL RIVER, AK (131) | 
| 
 | KUSKOKWIM BAY, AK (145) | 
| 
 | KWIGUK, AK (147) | 
| 
 | MARSHALL, AK (157) | 
| 
 | MELOZITNA, AK (167) | 
| 
 | NOME, AK (189) | 
| 
 | NORTON BAY, AK (191) | 
| 
 | NULATO, AK (193) | 
| 
 | NUNIVAK ISLAND, AK (195) | 
| 
 | OPHIR, AK (199) | 
| 
 | RUSSIAN MISSION, AK (221) | 
| 
 | SHUNGNAK, AK (237) | 
| 
 | SLEETMUTE, AK (245) | 
| 
 | SOLOMON, AK (247) | 
| 
 | ST. MICHAEL, AK (255) | 
| 
 | TELLER, AK (277) | 
| 
 | UNALAKLEET, AK (291) | 
| 845 - Bristol Bay Basin | BRISTOL BAY, AK (49) | 
| 
 | COLD BAY, AK (93) | 
| 
 | NAKNEK, AK (185) | 
| 
 | NUSHAGAK BAY, AK (197) | 
| 
 | PORT MOLLER, AK (211) | 
| 860 - Selawik Lowland Basins | KOTZEBUE, AK (143) | 
| 
 | SELAWIK, AK (229) | 
| 
 | SHISHMAREF, AK (235) | 
| 880 - Interior Lowlands Basin | BIG DELTA, AK (39) | 
| 
 | EAGLE, AK (81) | 
| 
 | FAIRBANKS, AK (83) | 
| 
 | HEALY, AK (105) | 
| 
 | KANTIAHNA RVR., AK (127) | 
| 
 | LIVENGOOD, AK (153) | 
| 
 | MCGRATH, AK (161) | 
| 
 | MEDFRA, AK (165) | 
| 
 | MT. HAYES, AK (173) | 
| 
 | MT. MCKINLEY, AK (177) | 
| 
 | NABESNA, AK (183) | 
| 
 | RUBY, AK (219) | 
| 
 | TANACROSS, AK (271) | 
| 
 | TANANA, AK (273) | 
| 
 | TAYLOR MTS., AK (275) | 
| 884 - Brooks Range Province | AMBLER RIVER, AK (5) | 
| 
 | ARCTIC, AK (11) | 
| 
 | BAIRD MOUNTAINS, AK (21) | 
| 
 | CHANDALAR, AK (55) | 
| 
 | PHIL. SMITH MT., AK (203) | 
| 
 | SURVEY PASS, AK (259) | 
| 
 | TABLE MTN., AK (263) | 
| 
 | WISEMAN, AK (303) | 
| 885 - Southern Foothills Province | CHANDLER LAKE, AK (57) | 
| 
 | DE LONG MOUNTAINS, AK (73) | 
| 
 | HOWARD PASS, AK (111) | 
| 
 | KILLIK RIVER, AK (137) | 
| 
 | MISHEGUK MTN., AK (171) | 
| 
 | NOATAK, AK (187) | 
| 
 | POINT HOPE, AK (205) | 
| 886 - Northern Foothills Province | POINT LAY, AK (207) | 
| 
 | UTUKOK RIVER, AK (297) | 
| 890 - Arctic Coastal Plains Province | BARROW, AK (23) | 
| 
 | BARTER ISLAND, AK (25) | 
| 
 | BEECHEY POINT, AK (29) | 
| 
 | DEMARCATION POINT, AK (75) | 
| 
 | FLAXMAN ISLAND, AK (89) | 
| 
 | HARRISON BAY, AK (103) | 
| 
 | IKPIKPUK RVR., AK (119) | 
| 
 | LOOKOUT RIDGE, AK (155) | 
| 
 | MEADE RIVER, AK (163) | 
| 
 | MT. MICHELSON, AK (179) | 
| 
 | SAGAVANIRKTOK, AK (223) | 
| 
 | TESHEKPUK, AK (279) | 
| 
 | UMIAT, AK (287) | 
| 
 | WAINWRIGHT, AK (301) | 
| 984 - Kodiak State | KODIAK ISLAND, AK (150) | 
