1958. Sturgeon, Myron Thomas, 1908-. geology by Myron T. Sturgeon and Associates ; geologic map compiled by Gilbert E. Smith and others ; drafting by Harold J. Flint. Scale 1:625,000. ... Ohio. Division of Geological Survey.
Search Results
1958. Wayne, William J.(William John), 1922-cartographer. Base modified from U.S. Geological Survey Base map of Indiana, 1953.; Reprinted with minor modifications, 1963. Scale 1:1,000,000. Indiana Geological Survey.