1951. Norris, Stanley Eugene, 1916-. Scale not given. Library's copy 2 mounted on cloth backing. "April 1951." Relief shown by contours; contour interval 100 feet. Includes index map. ... Ohio. Division of Geological Survey.
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1917. Ohio State University. Scale approximately 1:6000. 1 in. = 500 ft. Bird's-eye view. [Ohio State University]. Ohio State University.
413. Map showing location of Panama Canal : as recommended by the Isthmian Canal Commission of 1899-1902
1905. National Geographic Society (U.S.). Scale 1:100,000 Relief shown by contours and hachures. Depths shown by soundings. Oriented with north toward upper left. In lower left margin: Andr... National Geographic Society.
1909. New-York Coal Company. Scale not given. Map traced. W.C.W. Angler, Mining and Civil Engineer, Wellston, Ohio ; original map by J.W. Jones, Civil and Mining Engineer, New ... New-York Coal Company.
1947. White, George W. (George Willard), 1903-1985. compiled by Geo. W. White. Scale approximately 1:56,000. Ohio. Division of Geological Survey.
1947. White, George W. (George Willard), 1903-1985. compiled by Geo. W. White. Scale approximately 1:56,000. Ohio. Division of Geological Survey.
1947. White, George W. (George Willard), 1903-1985. Scale approximately 1:56,000. compiled by Geo. W. White. Ohio. Division of Geological Survey.
1977. Duffield, Susan L. Base map by U.S. Geological Survey. Scale approximately 1:500,000 compiled by Susan L. Duffield ; cartographer, R. Anne Berry. Ohio. Division of Geological Survey.
1947. Geological Survey of Ohio. Library's c.2 mounted on cloth backing. "Prepared in cooperation with Division of Labor Statistics, Department of Industrial Relations, Divisions o... Ohio. Division of Geological Survey.
1947. Geological Survey of Ohio. Library's c.2 mounted on cloth backing. "Prepared in cooperation with Division of Labor Statistics, Department of Industrial Relations, Divisions o... Ohio. Division of Geological Survey.