Big Ten Academic Alliance Geospatial Discovery Portal
Big Ten Academic Alliance Geoportal
Areas of sinkholes and sinking-stream basins with locations of cave openings and springs in Central Southern Indiana
- Powell, Richard L., cartographer.
- This map data was compiled in 1997 from information available at the time, but was unpublished until 2002; the map does not reflect any changes in data since 1997.; Includes location map and text. Scale 1:250,000.
- Indiana Geological Survey
- Indiana Historic Maps
- Indiana, United States
- Geological maps
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