1900. Shows counties, cities and towns, and railroads. Scale approximately 1:1,647,369. 26 miles to the inch. By the Matthews-Northrup Co. Matthews-Northrup.
1970. Purcell, Roger L. Includes geological cross-section. Scale approximately 1:1,800,000. Adapted from Regional Geologic Map series, Indiana Geological Survey; drafted b... Indiana Geological Survey.
1952. Moran, W. H.(William H.), cartographer. January, 1952.; Black line print.; Traced from Map of Indiana, edition of 1950, published by U.S. Geological Survey. Minor revisions and additions ... Geological Survey.
1951. Moran, W. H.(William H.), cartographer. November, 1951.; Blue line print.; Traced from compilation proof sheets of new base map of Indiana, prepared by the U.S. Geological Survey. Minor a... Indiana 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.
1998. Shaffer, Nelson R. Includes pie graph and list of further reading. '1984 (Modified 1997).' Scale 1:500,000 By Nelson R. Shaffer. Indiana Geological Survey.
1973. Keller, Stanley J., cartographer. Compilation complete to July 1, 1972.; Base by U.S. Geological Survey; 1950.; Miscellaneous map no. 18.; Includes tables and indexes of underground... Geological Survey, Dept. of Natural Resources.
1923. Pickens, R. F. and Sauers, Chas. G. (Charles G.). Map furnished by Indiana State Highway Commission.' 'Information on hotels, trains and accommodations in state parks compiled by Chas. Sauers'--Map... Indiana Department of Conservation.
1953. Wier, Charles E. (Charles Eugene), 1921- cartographer. 1953.' Scale 1:1,000,000. Compiled by C.E. Wier. Indiana Department of Geology and Natural Resources.