PA Department of Conservation & Natural ResourcesAreal distribution of the physiographic sections of Pennsylvania as mapped at 1:50,000 scale.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/731205648bb747d396c8920fcdfea4a8_6engPennsylvania Department of Conservation and Natural Resources Open Data PortalPublicPhysiographic Sections of Pennsylvania [Pennsylvania]Web servicesPennsylvaniaLast Modified: 2026-01-08