University of Pittsburgh Landslide data (1920-present) for the 12 county region within PennDOT Districts 10, 11, and 12. Landslide locations are provided as points and are attributed with an extensive list of landslide relevant data (the complete list is provided hereirise-regional-landslide-inventory-for-southwestern-pennsylvaniaengWestern Pennsylvania Regional Data Center Open DataPublicIRISE Regional Landslide Inventory for Southwestern PennsylvaniaDatasetsPennsylvania--PittsburghPennsylvaniaLast Modified: 2026-02-19