Big Ten Academic Alliance Geospatial Discovery Portal
Big Ten Academic Alliance Geoportal
Map of Indiana showing location of active coal mines
- Wier, Charles E.(Charles Eugene), 1921-cartographer.
- Shows southwest quadrant of Indiana.; Includes location map and Diagram of township showing arrangement of sections.; 1952. Scale 1:500,000.
- Indiana Dept. of Conservation, Geological Survey
- Indiana Historic Maps
- Indiana, United States
- Mine maps, Coal mines, and Geoscientific Information
- Contributed by:
- More details at