Other
North America
14
Pennsylvania
14
United States
10
New Jersey
5
Philadelphia
4
Amérique du Nord
3
États-Unis
2
Penn
2
Scandinavia
2
Alabama
1
America
1
Canada
1
Colorado
1
Columbiana County (Ohio)
1
East (U.S.)
1
East United States
1
Haddonfield (N.J.)
1
Kentucky
1
Little Beaver River Valley (Ohio and Pa.)
1
Mammoth Cave (Ky.)
1
Middle Atlantic States
1
Minnesota
1
Mississippi River Valley
1
North Carolina
1
Ohio
1
Papua New Guinea
1
Philadelphia (Pa.)
1
Philadelphie (Penns.)
1
Rocky Mountains Region
1
Scandinavie
1
Schuylkill County
1
Westville
1
Wisconsin
1
Wissahickon Creek Valley
1
Wissahickon Creek Valley (Pa.)
1