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Lithics Home | Counties A-Z | Geologic Systems | Lithic Types | Chert Drawers | Lithics Program   Drawer # 6 System(s): Quaternary-Pennsylvanian   Lithic Type:   Glacial Till County(s): Story Lithic Type:   Argillaceous Mudstone County(s): Webster Lithic Type:   Kekabeka County(s): Webster Lithic Type:   Tongue River Silica County(s): Woodbury Lithic Type:   Bijou Hills Orthoquartzite County(s): Woodbury Lithic Type:   Argentine County(s): Woodbury   (Rear) Oolitic Till Cobble Story Co. SR-D+   Glacial Till Story Co. SR-F   Argillaceous Mudstone Webster Co. WB-C+ Tongue River Silica Woodbury Co. WD-A   Oolitic Till Cobble Story Co. SR-D   Glacial Till Story Co. SR-F+   Argillaceous Mudstone Webster Co. WB-C Tongue River Silica Woodbury Co. WD-A+   Glacial Till Story Co. SR-C14+   Glacial Till Story Co. SR-J   Kekabeka Webster Co. WB-B+   Bijou Hills Orthoquartzite Woodbury Co. WD-B1 Glacial Till Story Co. SR-C13+   Glacial Till Story Co. SR-K1   Kekabeka Webster Co. WB-B   Tongue River Silica Woodbury Co. WD-B2   Glacial Till Story Co. SR-C12   Glacial Till Story Co. SR-K1+   Argillaceous Mudstone Webster Co. WB-A+ Tongue River Silica Woodbury Co. WD-B2+   Oolitic Till Cobble Story Co. SR-C11+   Glacial Till Dolomitic Story Co. SR-K2+   Argillaceous Mudstone Webster Co. WB-A Glacial Till Madison Co. MD-A1     (Front) Updated by Tricia R. Bender, Web Designer Mary De La Garza, Web Master Click here to go back to the OSA homepage. Click here to go to The University of Iowa website.