Data Summary

PA Historic Underground Mine Permits

2024 - Pennsylvania Department of Environmental Protection

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A layer containing the permit boundaries of historic underground coal mine permits in Pennsylvania. Data was converted over from the physical "Mylar Review" system for mine permit location look-ups. The physical topographic maps and mylar overlays have been scanned, georeferenced, and vectorized to create the permit boundary polygon layers with an index number attribute. The corresponding index cards have been data entered in a spreadsheet. The polygon layers' attribute tables were joined with the spreadsheet. There are no planned updates for this layer, see the Department's Active Underground Permit Boundaries layer for newer mine permits. This layer is for informational purposes only and is known to not be a complete listing of all historic permits.