Pennsylvania Geospatial Data Clearinghouse
Pennsylvania Spatial Data Access (PASDA) is Pennsylvania's official public access open geospatial data portal. PASDA was developed in 1995 by the Pennsylvania State University and has served as the geospatial data portal for Pennsylvania for over twenty three years. PASDA was developed as a service to the citizens of the Commonwealth of Pennsylvania. The purpose of PASDA is to serve as the Commonwealth's comprehensive and coordinated open geospatial data portal that provides free public access to geospatial data and information by, for, and about the Commonwealth of Pennsylvania.