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Place
- Pennsylvania, United States975
- Philadelphia, Pennsylvania, United States226
- United States of America151
- West Branch Delaware River, Pennsylvania, United States44
- Allegheny County, Pennsylvania, United States42
- Lancaster County, Pennsylvania, United States26
- Appalachian Mountains, United States23
- Chesapeake Bay Basin, Maryland, United States20
- Maryland, United States19
- State College, Pennsylvania, United States19
- Allegheny National Forest, Pennsylvania, United States16
- Chester County, Pennsylvania, United States16
- North America14
- Dauphin County, Pennsylvania, United States12
- Delaware, United States12
- Lake Erie, United States11
- Pittsburgh, Pennsylvania, United States9
- Virginia, United States9
- West Virginia, United States9
- Delaware River, Delaware, United States8