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You searched for: Creator United States Geological Survey (USGS) Remove constraint Creator: United States Geological Survey (USGS) Publisher State of Pennsylvania Remove constraint Publisher: State of Pennsylvania Time Period 2005-2009 Remove constraint Time Period: 2005-2009
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Chesapeake Bay Watershed Land Cover Data Series 2006 penn-state

2006. United States Geological Survey (USGS). To better understand how the land is changing and to relate those changes to water quality trends, the USGS funded the production of a Chesapeake B...


Historic topographic maps for Pennsylvania penn-state

2005. United States Geological Survey (USGS). Historic USGS 15 minute topographic maps for Pennsylvania as collected from the MapTech Historical Map Collection at '. Scanned map images from Map...


New York state boundary with offshore boundaries penn-state

2005. United States Geological Survey (USGS). New York state boundary includes offshore boundaries (oceans, bays, and great lakes). This map layer portrays the State boundaries of the United St...