Geology of the Sparta region, Randolph County
Occurrence and character of Pennsylvanian strata, including various sections from outcrops. Geologic history and mineral resources, principally coal and some oil and limestone. Maps show rock and coal outcrops, oil and gas well locations, and structure on No. 6 coal;
Cited in Circular 220, "Unpublished Reports on Open File";
Cited in Circular 201, "Unpublished Reports on Open File";
Illinois--Randolph County--Sparta region
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