Distribution, structure, and mined areas of coals in Fountain and Warren Counties, and the northernmost part of Vermillion County, Indiana
Hutchison, Harold C.(Harold Christy), 1925-cartographer.
Preliminary coal map no. 9--Margin.; Includes 1 ancillary map, 1 diagram showing township enumeration, 1 index map, 1 stratigraphic column, and 1 cross section.; Verso shows 5 tables including indexed list of mines keyed to map. Scales differ