1986. Weber, Licia. Blue line print. Includes location map. Scale approximately 1:350,000. Compiled by Licia A. Weber, January 1986. Indiana Geological Survey.
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1975. Hutchison, Harold C. (Harold Christy), 1925-. Blue line print. 'Base modified from Indiana Department of Conservation, Geological Survey. Base map of portion of western Indiana, 1951.' Includes... Indiana Department of Geology and Natural Resources.
1974. Hutchison, Harold C. (Harold Christy), 1925-. Blue line print. 'Base modified from Indiana Department of Conservation, Geological Survey. Base map of portion of western Indiana, 1951.' Includes... Indiana Department of Geology and Natural Resources.
1970. Hutchison, Harold C. (Harold Christy), 1925-. Blue line print. 'Base modified from Indiana Department of Conservation, Geological Survey. Base map of portion of western Indiana, 1951.' Includes... Indiana Department of Geology and Natural Resources.
1969. Hutchison, Harold C. (Harold Christy), 1925-. Scale approximately 1:380,000. State of Indiana, Dept. of Conservation.
2000. Eaton, Nathan (Cartographer) and Weber, Licia. Compilation complete through October 1997.' 'Base map digitized from 1:500,000 scale, 1978 U.S. Geological Survey map of Indiana.' Includes text an... Indiana Geological Survey.
1907. Blatchley, W. S. (Willis Stanley), 1859-1940. Shows good, fair, and light oil territory, undrilled territory, gas wells, dry holes or salt water wells, abandoned territory, and pumping stations... Indiana Department of Geology and Natural Resources and William B. Burford.
1903. Blatchley, W. S. (Willis Stanley), 1859-1940. Shows good, fair, and light oil territory, gas territory, dry or salt water territory, and pumping stations. Detached from: 28th Annual report of t... Indiana Department of Geology and Natural Resources and William B. Burford.
1900. Blatchley, W. S. (Willis Stanley), 1859-1940. Shows good, fair, and light oil territory, gas wells, dry and salt water territory, undrilled area, and pumping stations. Detached from: 25th Annua... Indiana Department of Geology and Natural Resources and William B. Burford.