Region
Pennsylvania
Philadelphia
5
Philadelphia (Pa.)
3
Philadelphia County (Pa.)
3
Bucks County (Pa.)
2
Delaware Co
2
Delaware County
2
Delaware County (Pa.)
2
Penn
2
Philadelphia County
2
Philadelphia Region
2
Schuylkill County
2
United States
2
York County
2
Accomack County
1
Accomack County (Va.)
1
Baltimore
1
Baltimore (Md.)
1
Brooklyn (New York, N.Y.)
1
Chester County
1
Collegeville
1
Delaware
1
Dutchess County
1
Dutchess County (N.Y.)
1
Germantown
1
Germantown (Philadelphia, Pa.)
1
Irwin's Cave
1
Kent County
1
Kent County (Del.)
1
Maryland
1
Montgomery County (Pa.)
1
New York (State)
1
Northampton County
1
Northampton County (Va.)
1
Orleans County
1
Orleans County (Vt.)
1
Pennsylvanie
1
Philadelphie
1
Pittsburgh
1
Pittsburgh (Pa.)
1
Point State Park (Pittsburgh, Pa.)
1
Port Kennedy
1
Rhode Island
1
Susquehanna County, Pennsylvania
1
Vermont
1
Virginia
1
Westmoreland County
1
Westmoreland County (Pa.)
1