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Society
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Pennsylvania
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2001
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1. Costly Landslide Events in the United States
2001. Godt, Jonathan W. This polygon shapefile shows point locations of costly individual landslide events in the 50 United States and Puerto Rico. Landslide locations wer... National Atlas of the United States.
2. Costly Regional Landslide Events in the United States
2001. Godt, Jonathan W. This polygon shapefile contains information on costly regional landslide events in the 50 United States and Puerto Rico. The extents of the regiona... National Atlas of the United States.
3. Pennsylvania ZIP Code Areas 2002
2001. Geographic Data Technology, Inc. (GDT). Pennsylvania ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit... Environmental Systems Research Institute, Inc. (ESRI).