Clason Map Co. Scale [ca. 1:1,267,000] Relief shown by hachures. "Principal auto roads shown in red. Oil and gas fields shown in orange."--Lower margin. Includes ... Clason Map Co.
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1913. Birds's eye view. Title penciled it. Scale drawn in pencil and cannot be distinguished.
1991. Hull, Dennis N. 1948-. Dennis N. Hull, chief compiler. Ohio. Division of Geological Survey.
1984. Hull, Dennis N. by Dennis N. Hull ; cartographic drafting by Leonard M. Guckenheimer and Katherine L. Jennings. Includes location map. Includes bibliography. Ohio. Division of Geological Survey.
1965. Pfannehecker, D. Includes color cross section. D. Pfannehecker. Scale 1:2,250,000. Ohio. Division of Geological Survey.
2001. "Publication date: 11/2001." Cross section color-coded for geologic time period represented within the geologic layers. Includes notes, color cross... Ohio. Department of Natural Resources.
1958. Sturgeon, Myron Thomas, 1908-. geology by Myron T. Sturgeon and Associates ; geologic map compiled by Gilbert E. Smith and others ; drafting by Harold J. Flint. Scale 1:625,000. ... Ohio. Division of Geological Survey.
1948. Lamborn, Raymond E. 1890-. by Raymond E. Lamborn. "Base from topographic maps of U.S. Geological Survey." Relief shown by contours and spot heights. Scale 1:62,500. Ohio. Division of Geological Survey.
1947. White, George W. (George Willard), 1903-1985. "Base from topographic maps of U.S. Geological Survey." by George W. White. Relief shown by contours and spot heights. Scale 1:62,500.
1920. Bownocker, J. A. 1865-1928. J.A. Bownocker, state geologist ; revisions of the geology of Ohio shown on this map are the work of J.A. Bownocker, W.G. Burroughs [etc.] ... W.D.... Geological survey of Ohio.