Region
Pennsylvania
Philadelphia
236
Philadelphia (Pa.)
19
United States
16
Lancaster County
11
New Jersey
6
Northampton County
5
New York (State)
4
Allentown
3
Bethlehem
3
Delaware County
3
Luzerne County
3
Montgomery County
3
Philadelphia metropolitan area
3
Reading
3
York County
3
Breneman Site (Pa.)
2
Bucks County
2
Delaware
2
Germany
2
Harrisburg
2
Indiana County
2
Lancaster
2
Lancaster County (Pa.)
2
Monroe County
2
North Philadelphia (Philadelphia, Pa.)
2
Pottstown
2
Schuylkill River Park (Philadelphia, Pa.)
2
Scranton
2
Arizona
1
Ashley
1
Bedford County
1
Bensalem
1
Berks County
1
Bushkill Creek
1
Bushkill Creek (Pa.)
1
Butler County
1
Chester County
1
Christiana
1
Cumberland County
1
Dade County
1
Dalton
1
Dauphin County
1
Delaware River Valley (N.Y.-Del. and N.J.)
1
East Donegal (Pa. : Township)
1
East Stroudsburg
1
Emmaus (Pa.)
1
England
1
Ephrata
1
Europe
1
more ...