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You searched for: Genre Geospatial data Remove constraint Genre: Geospatial data Creator United States Geological Survey (USGS) Remove constraint Creator: United States Geological Survey (USGS) Publisher State of Pennsylvania Remove constraint Publisher: State of Pennsylvania Subject Imagery and Base Maps Remove constraint Subject: Imagery and Base Maps Type Dataset Remove constraint Type: Dataset Place Chesapeake Bay Basin, Maryland Remove constraint Place: Chesapeake Bay Basin, Maryland Time Period 1950-1999 Remove constraint Time Period: 1950-1999

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