Pennsylvania Spatial Data Access, PASDA, is the State Geospatial Data clearinghouse for the Commonwealth of Pennsylvania. PASDA is also a National Spatial Data Infrastructure (NSDI) Clearinghouse node that provides free public access to geospatial data and metadata via the World Wide Web. PASDA supports search, display, and retrieval of GIS data, imagery, such as satellite images and aerial photographs, and metadata related to Pennsylvania. In addition to GIS data sets, PASDA also provides GIS tutorials, an extensive FAQ, information about metadata, and an online metadata entry form.
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