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You searched for: Author U.S. Geological Survey Remove constraint Author: U.S. Geological Survey Place Pennsylvania, United States Remove constraint Place: Pennsylvania, United States Year 2007 Remove constraint Year: 2007
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1. Geographic Names Information System (GNIS) for Pennsylvania

2007. U.S. Geological Survey. The Geographic Names Information System (GNIS), developed by the U.S. Geological Survey in cooperation with the U.S. Board on Geographic Names (BGN...