Region
Pennsylvania
24
Philadelphia
24
Schuylkill River
7
Philadelphia (Pa.)
3
Cape Town (South Africa)
2
Delaware
2
Delaware River
2
New Jersey
2
Penn
2
Schuylkill River (Pa.)
2
Wilmington
2
Wilmington (Del.)
2
Delaware River Watershed (N.Y.-Del. and N.J.)
1
Delaware River Watershed (N.Y.-Del.and N.J.
1
Europe
1
London (England)
1
North America
1
Passaic River (N.J.)
1
Perkiomen Creek
1
Schulykill River
1
Schuykill River
1
Valley Creek
1
Valley Creek (Pa.)
1