Region
Pennsylvania
24
United States
12
Philadelphia
4
Berks County (Pa.)
2
Clearfield County
2
East (U.S.)
2
Elk County
2
Great Britain
2
Ireland
2
New York (State)
2
Pittsburgh (Pa.)
2
Virginia
2
Allegheny County (Pa.)
1
Allegheny Mountains
1
Alsace (Pa. : Township)
1
Beaver County (Pa.)
1
Berks County
1
British Isles
1
Brooklyn (New York, N.Y.)
1
Butler (Butler Co., Pa.)
1
Butler County (Pa.)
1
Charles County (Md.)
1
Chester County
1
Conemaugh Valley
1
England
1
Hummelstown
1
Jefferson County
1
Luzerne County (Pa.)
1
New Bedford
1
New Jersey
1
New York
1
Ohio
1
Pennypack (Philadelphia, Pa.)
1
Philadelphia (Pa.)
1
Pittsburgh
1
Point State Park (Pittsburgh, Pa.)
1
Poland
1
Schuylkill Canal (Pa.)
1
Somerset County
1
Switzerland
1
Texas
1
Tyczyn
1
Ulster (Northern Ireland and Ireland)
1
Westmoreland County (Pa.)
1