1975. Ohio. Division of Geological Survey. Scale 1:12,000. by Stephen P. Reidel.
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2001. Ohio. Division of Geological Survey. Scale approximately 1:2,000,000. Text on verso: Glacial deposits of Ohio. "Publication date: 7/01"--Verso. Ohio. Division of Geological Survey.
2001. Ohio. Division of Geological Survey. State of Ohio, Department of Natural Resources, Division of Geological Survey. "Publication date: 02/01." Scale not given. "Larger versions of this... Ohio. Department of Natural Resources.
1968. Ohio. Division of Geological Survey. Scale 1:500,000. Coordinates: W 84⁰52ʹ--W 80⁰30ʹ/N 42⁰--N 38⁰22ʹ Includes tables of "Oil pipe lines," "Gas storage areas," and "Gas pipe lines." "A... Ohio. Division of Geological Survey.
1970. Ohio. Division of Geological Survey. OSU's copy 1 gift of Dale Bertsch. Scale approximately 1:2,200,000 State of Ohio, Department of Natural Resources, Division of Geological Survey. Ohio. Division of Geological Survey.
1999. Ohio. Division of Geological Survey. Scale 1:500,000 ; Lambert conformal conic projection, standard parallels 33⁰ and 45⁰ Includes text and 2 key maps showing compilation responsibilit... Ohio. Division of Geological Survey.
2003. Ohio. Division of Geological Survey. Relief shown by shading and gradient tints. Map of geologic regions, with text, on verso. Scale 1:2,000,000. Ohio. Division of Geological Survey.