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B1g Genre Sm:Geospatial data
Dc Creator Sm:United States Geological Survey (USGS)
Dc Publisher Sm:State of Pennsylvania
Dc Rights S:Public
Dc Subject Sm:Imagery and Base Maps
Dc Type Sm:Dataset
Dct Provenance S:Penn State
Place:Chesapeake Bay Basin, Maryland
Time Period:1950-1999