1961. Hutchison, Harold C. (Harold Christy), 1925-. Preliminary coal map no. 9--Margin.; Includes 1 ancillary map, 1 diagram showing township enumeration, 1 index map, 1 stratigraphic column, and 1 c... Indiana Dept. of Conservation, Geological Survey.
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1959. Hutchison, Harold C. (Harold Christy), 1925-. Preliminary coal map no. 8--Margin.; Includes 2 geologic cross sections, location map, geologic column, index of mines, tables, and diagram of town... Indiana Dept. of Conservation, Geological Survey.
1951. Patton, John B. (John Barratt), 1915-. Blue line.; August, 1951.; Not for publication, for correspondence use only--Upper margin. Scale approximately 1:1,500,000. Indiana Dept. of Conservation, Geological Survey.
1952. Wier, Charles E. (Charles Eugene), 1921- cartographer. Shows southwest quadrant of Indiana.; Includes location map and Diagram of township showing arrangement of sections.; 1952. Scale 1:500,000. Indiana Dept. of Conservation, Geological Survey.
1962. Dawson, T. A.(Thomas Albert), 1916-cartographer. Compilation complete to April 1960.; Includes list of Names and locations of oil and gas fields and Index map showing sources used in compilation. ... Indiana Dept. of Conservation, Geological Survey.