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Lithics Home | Counties A-Z | Geologic Systems | Lithic Types | Chert Drawers | Lithics Program A - C | D - M | O - S | T - W Lithic Type Drawer # System County County Exp. # Cat. # Heated Exposure Argentine 6 Pennsylvanian Madison MD-A1 163 Q Argentine 7 Pennsylvanian Madison MD-A1+ 163 + Q Argentine 7 Pennsylvanian Madison MD-A2 164 Q Argentine 7 Pennsylvanian Madison MD-A2+ 164 + Q Argentine 7 Pennsylvanian Pottawattamie PW-B 146 Q Argentine 7 Pennsylvanian Pottawattamie PW-B+ 146 + Q Argillaceous Mudstone 6 Quaternary Webster WB-A 157 O Argillaceous Mudstone 6 Quaternary Webster WB-A+ 157 + O Argillaceous Mudstone 6 Quaternary Webster WB-C Argillaceous Mudstone 6 Quaternary Webster WB-C+ + Bethany Falls A 7 Pennsylvanian Madison MD-D 321 O Bethany Falls A 7 Pennsylvanian Madison MD-D+ 321 + O Bethany Falls A 7 Pennsylvanian Madison MD-E 322 M Bethany Falls A 7 Pennsylvanian Madison MD-E+ 322 + M Bethany Falls B 7 Pennsylvanian Adair AD-A1 323 Q Bethany Falls B 7 Pennsylvanian Adair AD-A1+ 323 + Q Bethany Falls B 7 Pennsylvanian Pottawattamie PW-A 145 Q Bethany Falls B 7 Pennsylvanian Pottawattamie PW-A+ 145 + Q Bijou Hills Orthoquartzite 6 Quaternary Woodbury WD-B1 366 M Blanding 22 Silurian (Lower) Clayton CT-D 64 Blanding 22 Silurian (Lower) Clayton CT-D+ 64 + Q Blanding 22 Silurian (Lower) Delaware DW-B+ 206 + Q Blanding 22 Silurian (Lower) Delaware DW-C 194 C Blanding 22 Silurian (Lower) Delaware DW-C+ 194 + C Blanding 22 Silurian (Lower) Delaware DW-F 508 Blanding 22 Silurian (Lower) Delaware DW-F+ 508 + Blanding 22 Silurian (Lower) Delaware DW-B 206 Q Blanding 22 Silurian (Lower) Dubuque DB-A 11 C Blanding 22 Silurian (Lower) Dubuque DB-A+ 11 + C Blanding 22 Silurian (Lower) Dubuque DB-F 119 C Blanding 22 Silurian (Lower) Dubuque DB-F+ 119 + C Blanding 22 Silurian (Lower) Dubuque DB-G 179 Blanding 22 Silurian (Lower) Dubuque DB-G+ 179 + Blanding 22 Silurian (Lower) Dubuque DB-M 476 Blanding 22 Silurian (Lower) Dubuque DB-M+ 476 + Blanding 22 Silurian (Lower) Fayette FT-A 249 C Blanding 22 Silurian (Lower) Fayette FT-A+ 249 + C Blanding 22 Silurian (Lower) Jackson JK-C 484 Blanding 22 Silurian (Lower) Jackson JK-C+ 484 + Blanding 22 Silurian (Lower) Jackson JK-D 485 Blanding 22 Silurian (Lower) Jackson JK-D+ 485 + Blanding 22 Silurian (Lower) Jackson JK-F 487 Blanding 22 Silurian (Lower) Jackson JK-F+ 487 + Blanding 23 Silurian (Lower) Jackson JK-G 488 Blanding 23 Silurian (Lower) Jackson JK-G+ 488 + Blanding 23 Silurian (Lower) Jackson JK-H+ 489 + Blanding 23 Silurian (Lower) Jackson JK-I 490 Blanding 23 Silurian (Lower) Jackson JK-I+ 490 + Bog Iron 9 Pennsylvanian Wapello WP-A 523 Bog Iron 10 Pennsylvanian Wapello WP-A+ 523 + Buck Creek Quarry 20 Silurian (Lower) Winneshiek WH-D 451 Buck Creek Quarry 20 Silurian (Lower) Winneshiek WH-D+ 451 + Burlington 13 Mississippian (Middle) Des Moines DM-B 74 O Burlington 13 Mississippian (Middle) Des Moines DM-B+ 74 + O Burlington 13 Mississippian (Middle) Des Moines DM-C 75 S Burlington 13 Mississippian (Middle) Des Moines DM-C+ 75 + S Burlington 13 Mississippian (Middle) Des Moines DM-D 87 Q Burlington 13 Mississippian (Middle) Des Moines DM-D+ 87 + Q Burlington 13 Mississippian (Middle) Des Moines DM-E 256 C Burlington 13 Mississippian (Middle) Des Moines DM-E+ 256 + C Burlington 13 Mississippian (Middle) Des Moines DM-F1 151 O Burlington 13 Mississippian (Middle) Des Moines DM-F1+ 151 + O Burlington 13 Mississippian (Middle) Des Moines DM-F2+ 208 + O Burlington 13 Mississippian (Middle) Des Moines DM-G 209 O Burlington 13 Mississippian (Middle) Des Moines DM-G+ 209 + O Burlington 13 Mississippian (Middle) Des Moines DM-H 287 O Burlington 13 Mississippian (Middle) Des Moines DM-H+ 287 + O Burlington 14 Mississippian (Middle) Des Moines DM-I 483 Burlington 14 Mississippian (Middle) Des Moines DM-I+ 483 + Burlington 14 Mississippian (Middle) Henry HN-G 307 T Burlington 14 Mississippian (Middle) Henry HN-G+ 307 + T Burlington 14 Mississippian (Middle) Henry HN-I 307 Burlington 14 Mississippian (Middle) Lee LE-B1 77 Q Burlington 14 Mississippian (Middle) Lee LE-B1+ 77 + Q Burlington 14 Mississippian (Middle) Lee LE-D 115 O Burlington 14 Mississippian (Middle) Lee LE-D+ 115 + O Burlington 14 Mississippian (Middle) Louisa LA-B1 76 S Burlington 14 Mississippian (Middle) Louisa LA-B1+ 76 + S Burlington 14 Mississippian (Middle) Louisa LA-D 197 Q Burlington 14 Mississippian (Middle) Louisa LA-D+ 197 + Q Burlington 14 Mississippian (Middle) Louisa LA-E 150 Q Burlington 14 Mississippian (Middle) Louisa LA-E+ 150 + Q Burlington 16 Mississippian (Lower) Story SR-N1 246 Q Burlington 16 Mississippian (Lower) Story SR-N1+ 246 + Q Burlington 16 Mississippian (Lower) Story SR-N2 246 Burlington 16 Mississippian (Lower) Story SR-N2+ 246 + Burlington (Keokuk?) 14 Mississippian (Middle) Henry HN-I+ 310 + T Cement City 7 Pennsylvanian Union UN-A 315 Q Cement City 7 Pennsylvanian Union UN-A+ 315 + Q Croton Banded 11 Mississippian (Middle) Henry HN-L 462 Croton Banded 11 Mississippian (Middle) Henry HN-L+ 462 + Croton Banded 11 Mississippian (Middle) Jefferson JF-C 172 R Croton Banded 11 Mississippian (Middle) Jefferson JF-C+ 172 + R Croton Banded 12 Mississippian (Middle) Van Buren VB-G 103 S Croton Banded 12 Mississippian (Middle) Van Buren VB-G+ 103 + S Croton Banded 12 Mississippian (Middle) Van Buren VB-M Croton Banded 12 Mississippian (Middle) Van Buren VB-M+ Croton Banded 12 Mississippian (Middle) Washington WS-B1 189 S Croton Banded 12 Mississippian (Middle) Washington WS-B1+ 189 + S Croton Chalcedonic 10 Mississippian (Middle) Henry HN-6 6 Croton Chalcedonic 10 Mississippian (Middle) Henry HN-6+ 6 + Croton Chalcedonic 10 Mississippian (Middle) Henry HN-D 175 O Croton Chalcedonic 10 Mississippian (Middle) Henry HN-D+ 175 + O Croton Chalcedonic 10 Mississippian (Middle) Henry HN-H 308 T Croton Chalcedonic 10 Mississippian (Middle) Henry HN-H+ 308 + T Croton Chalcedonic 10 Mississippian (Middle) Jefferson JF-D1 199 Q Croton Chalcedonic 10 Mississippian (Middle) Jefferson JF-D1+ 199 + Q Croton Chalcedonic 10 Mississippian (Middle) Jefferson JF-D2 211 Q Croton Chalcedonic 10 Mississippian (Middle) Jefferson JF-D2+ 211 + Q Croton Chalcedonic 11 Mississippian (Middle) Jefferson JF-E 201 Croton Chalcedonic 11 Mississippian (Middle) Jefferson JF-E+ 201 + Croton Chalcedonic 11 Mississippian (Middle) Jefferson JF-F 204 C Croton Chalcedonic 11 Mississippian (Middle) Jefferson JF-F+ 204 + Croton Chalcedonic 11 Mississippian (Middle) Lee LE-E 511 Croton Chalcedonic 11 Mississippian (Middle) Lee LE-E+ 511 + Croton Chalcedonic Lee LE-F 512 Croton Chalcedonic Lee LE-F+ 512 + Croton Chalcedonic 11 Mississippian (Middle) Louisa LA-B2 80 S Croton Chalcedonic 11 Mississippian (Middle) Louisa LA-B2+ 80 + S Croton Chalcedonic 11 Mississippian (Middle) Louisa LA-C+ 81 + Croton Chalcedonic 11 Mississippian (Middle) Mahaska MK-A 178 S Croton Chalcedonic 11 Mississippian (Middle) Mahaska MK-A+ 178 + S Croton Chalcedonic 11 Mississippian (Middle) Story SR-B1 252 Croton Chalcedonic 11 Mississippian (Middle) Van Buren VB-C 210 Croton Chalcedonic 11 Mississippian (Middle) Van Buren VB-C+ 210 + Croton Chalcedonic 11 Mississippian (Middle) Van Buren VB-E 212 Croton Chalcedonic 11 Mississippian (Middle) Van Buren VB-E+ 212 + Croton Chalcedonic 11 Mississippian (Middle) Van Buren VB-F 102 S Croton Chalcedonic 11 Mississippian (Middle) Van Buren VB-F+ 102 + S Croton Chalcedonic 11 Mississippian (Middle) Washington WS-A 166 S Croton Chalcedonic 11 Mississippian (Middle) Washington WS-A+ 166 + S Croton Formation 10 Mississippian (Middle) Story SR-A1 176 O Croton Formation 10 Mississippian (Middle) Story SR-A1+ 176 + O Croton Formation 10 Mississippian (Middle) Story SR-A2 177 O Croton Formation 10 Mississippian (Middle) Story SR-A2+ 177 + O Curzon 7 Pennsylvanian Fremont FM-A 326 Q Curzon 7 Pennsylvanian Fremont FM-A+ 326 + Q Curzon 7 Pennsylvanian Mills ML-E1 324 Curzon 7 Pennsylvanian Mills ML-E1+ 324 + Curzon A 7 Pennsylvanian Fremont FM-B 325 C Curzon A 7 Pennsylvanian Fremont FM-B+ 325 + C Curzon B 7 Pennsylvanian Pottawattamie PW-C1 327 Q Curzon B 7 Pennsylvanian Pottawattamie PW-C1+ 327 + Q Ervine Creek 7 Pennsylvanian Pottawattamie PW-C2 329 Q Ervine Creek 8 Pennsylvanian Pottawattamie PW-C2+ 329 + Q A - C | D - M | O - S | T - W Click here to view or download the entire table in Excel. 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