Distribution, structure, and mined areas of coals in Spencer County, Indiana
Hutchison, Harold C.(Harold Christy), 1925-cartographer.
Preliminary coal map no. 8--Margin.; Includes 2 geologic cross sections, location map, geologic column, index of mines, tables, and diagram of township sections. Scale approximately 1:126,720. Approximately 1 inch to 2 miles.