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1. 3.75-Minute Quarter Quadrangle Boundary: Pennsylvania

2003. Pennsylvania Spatial Data Access. Index of USGS quarter-quadrangles (3.75 minute) covering Pennsylvania. The polygons are attributed with information pertaining to the USGS/PaGS Dig...

2. Blocks: Allegheny County, Pennsylvania

2002. Allegheny County Division of Computer Services Geographic Information Systems Group. Derived from original MAPINDX: Map Index Sheets from Block and Lot Grid of Property Assessment and based on aerial photography, showing 1983 datum ...

3. Coal Pillar Location Mining: Pennsylvania

2018. Pennsylvania Department of Environmental Protection. Coal Pillar Locations are pillars of coal that must remain in place to provide support for a coal mine.

4. Coal Pillar Location Oil & Gas: Pennsylvania

2018. Pennsylvania Department of Environmental Protection. Coal Pillar Locations are pillars of coal that must remain in place to provide support for an oil and gas well on the surface.

5. Conservation Wells: Pennsylvania

2018. PA DEP. The conservation well layer identifies the permitted surface location of oil and gas conservation wells that have not been plugged. These include a...

6. Conservation Wells Plugged: Pennsylvania

2018. PA DEP. The plugged conservation well layer identifies the permitted surface location of oil and gas conservation wells that have been plugged. A conservat...

7. Ecoregions of Pennsylvania Level III

2010. U.S. Environmental Protection Agency. Ecoregions by state were extracted from the seamless national shapefile. Ecoregions denote areas of general similarity in ecosystems and in the typ...

8. Ecoregions of Pennsylvania Level IV

2010. U.S. Environmental Protection Agency. Ecoregions by state were extracted from the seamless national shapefile. Ecoregions denote areas of general similarity in ecosystems and in the typ...

9. Encroachment Locations for Oil & Gas: Pennsylvania

2018. Pennsylvania Department of Environmental Protection. An Encroachment Location for Oil & Gas is a DEP primary facility type related to the Oil and Gas Program. The sub-facilities that fall under Oil an...

10. Encroachment Locations: Pennsylvania

2018. Pennsylvania Department of Environmental Protection. An Encroachment Location is a DEP primary facility type related to the Water Resources Management Water Obstructions Program. There are many sub-fa...