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.
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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.
1957. Smith, Robert W. Base map by U.S. Geological Survey. compiled by Robert W. Smith. Scale 1:500,000 ; Lambert conformal conic projection. Ohio. Division of Geological Survey.
1948. Alkire, Robert L. 1910-. Includes index to oil and gas fields. Includes: Generalized section of rocks of Ohio. Scale [1:380,160] compiled by Robert L. Alkire ; drafting by ... Ohio. Division of Geological Survey.
1960. Shearrow, George G. Scale [1:380,160] revised by ... George G. Shearrow and Theodore DeBrosse ; drafting by Harold J. Flint and Fletcher W. Twitty. Includes table of "... Ohio. Division of Geological Survey.
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.
1975. Scale approximately 1:2,000,000. "Map available also at a scale of 1 inch = approximately 8 miles." Shows gas and liquid petroleum storage areas, p... Ohio. Division of Geological Survey.
1998. Brockman, C. Scott. by C. Scott Brockman. "Total copies printed: 20,000. Unit cost: $.05. Publication date: 8/02." Table on verso. Scale approximately 1:212,000 "4/98.... 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.