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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: Tongue River Silica County(s): Woodbury   Lithic Type: Bijou Hills Orthoqutzt County(s): Woodbury   Lithic Type: Argentine County(s): Madison/Pottawattamie   Lithic Type: Bethany Falls A County(s): Madison   Lthic Type: Bethany Falls B County(s): Adair/Pottawattamie   Lthic Type: County(s):   (Rear) Tongue River Silica Woodbury Co. WD-B 367+ Bethany Falls A Madison Co. MD-D 321+ Bethany Falls A Madison Co. MD-E 322 Tongue River Silica Woodbury Co. WD-B 367 Bethany Falls A Madison Co. MD-D 321 Bethany Falls A Madison Co. MD-E 322 + Bijou Hills Orthoquartzite Woodbury Co. WD-B 366+ Carbonate Shale Webster Co. WB-A 157 Argentine Pottawattamie Co. PW-B 146+ Bethany Falls B Adair Co. AD-A 323 Bijou Hills Orthoquartzite Woodbury Co. WD-B 366 Carbonate Shale Webster Co. WB-A 157+ Argentine Pottawattamie Co. PW-B 146 Bethany Falls B Adair Co. AD-A 323 + Tongue River Silica Woodbury Co. WD-A 72+ Argentine Madison Co. MD-A 361 Argentine Madison Co. MD-A 164 + Bethany Falls B Pottawattamie Co. PW-A 145 Tongue River Silica Woodbury Co. WD-A 72 Argentine Madison Co. MD-A 361 + Argentine Madison Co. MD-A 164 Bethany Falls B Pottawattamie Co. PW-A 145+   (Front) Updated by Tricia R. Bender, Web Designer Mary De La Garza, Web Master July 2009 Click here to go back to the OSA homepage. Click here to go to The University of Iowa website.