Region
Pennsylvania
13
Philadelphia
12
Schuylkill River
4
New Jersey
3
Penn
2
Philadelphia (Pa.)
2
Schuylkill River (Pa.)
2
Delaware River
1
Delaware River Watershed (N.Y.-Del. and N.J.)
1
Delaware River Watershed (N.Y.-Del.and N.J.
1
Frankford Creek (Pa.)
1
London (England)
1
Passaic River (N.J.)
1
Perkiomen Creek
1
Schulykill River
1
Schuykill River
1
Schuylkill Canal
1
Sussex
1
Valley Creek
1
Valley Creek (Pa.)
1