Southwestern Pennsylvania CommissionLandslides and landslide potential for Western Pennsylvania digitized from mid 1970's - 1980's USGS Topo sheets. Polygons are locations that were active or have recent evidence of a slide. Landslides and landslide potential for Western Pennsylvania digitized from mid 1970's - 1980's USGS Topo sheets. Polygons are locations that were active or have recent evidence of a slide. USGS topo sheets used for digitizing: http://www.dcnr.state.pa.us/topogeo/hazards/landslides/slidepubs/clarksburg_of/index.htm http://www.dcnr.state.pa.us/topogeo/hazards/landslides/slidepubs/canton_of/index.htm http://www.dcnr.state.pa.us/topogeo/hazards/landslides/slidepubs/pittsburgh_of/index.htm http://www.dcnr.state.pa.us/topogeo/hazards/landslides/slidepubs/warren/index.htmFileengPennsylvania Spatial Data Access (PASDA)PublicPreviously Active Documented Landslides in Southwestern Pennsylvania [Pennsylvania]DatasetsPennsylvania