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38437
Hill, John R., Sturgeon, Polly R.
2017
SPG09-2017
Indiana Geological Survey, 2017, Geologic story of Brown County State Park: Indiana Geological Survey State Park Guide 09-2017.
2017 update to Indiana Geological Survey State Park Guide 09: Brown County State Park
Marker lat / long: 39.135765, -86.235714 (WGS84)