PA Department of Conservation & Natural ResourcesPoints indicating the locations of observed sinkholes and surface depressions in Pennsylvania. It should be noted that sinkholes and other subsidence features can be filled or repaired, and surface conditions at the data points may no longer display a karst feature. Data scale no better than 1:24,000.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/a8ce961fb81641f4b9e52b828fc33b85_8engPennsylvania Department of Conservation and Natural Resources Open Data PortalPublicKarst Features in Pennsylvania [Pennsylvania]Web servicesPennsylvaniaLast Modified: 2026-01-08