Ashtabula County

Bedrock-topography map: OF 206
Devonian and Mississippian formations: B 15
Drift-thickness map: OF 122
General: V 1, pt. 1
Glacial/Quaternary geology: M 2; B 68, RI 112; OF 293
Minerals: B 69
Oil and gas, "Austinburg" wells: OF 76
        "Big Lime" or deeper wells: OF 48
        "Packer Shell" elevations: OF 67
Sand and gravel: RI 6, 128
Shore erosion: RI 122
Structure map, Onondaga: OF 161
 

AR Annual Report     B Bulletin    DCMS Digital Chart and Map Series    DDF Digital Data File    EGSP Eastern Gas Shales Project     EL Educational Leaflet    GB Guidebook    GF GeoFacts     GN Geological Note    IC Information Circular     M Map Series    MR Miscellaneous Report     OF Open-File Map    OFR Open-File Report     OGS Ohio Geological Society publications    OTS Ohio Cooperative Topographic Survey publication    RI Report of Investigations    RP Report of Progress    RS Reprint Series    TR Technical Report (Division of Shore Erosion)    USGS U.S. Geological Survey publication    V Volume