Item Number: MM41
Map Scale: 1:500,000

Originally released in 1984. Latest revision released in 2012.

Shaffer, N. R., Shaffer, K. R., Meyer, R., and Sowder, K., 2012, Map of Indiana showing locations of active coal and industrial minerals operations: Indiana Geological Survey Miscellaneous Map 41, scale 1:500,000.

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Keywords: wall map, geologic map, map, coal, industrial minerals, energy resources

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Updated 8/19/2020