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Transportation
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2009
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1. United States Concise - Geographic Names Information System (GNIS)
2009. U.S. Geological Survey. The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS f...
2. United States Historic Features - Geographic Names Information System (GNIS)
2009. U.S. Geological Survey. The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS f...
3. United States Populated Places - Geographic Names Information System (GNIS)
2009. U.S. Geological Survey. The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS f...
4. Unpaved Roads: Pennsylvania, 2009
2009. PA Department of Environmental Protection : GDC. Unpaved roads layer for Pennsylvania created by the Bureau of Watershed Managment, Conservation Districts And Nutrient Management Division.