Region
Pennsylvania
71
United States
35
Maryland
26
Philadelphia
18
Delaware
17
New Jersey
9
Baltimore
6
New York (State)
6
Ohio
5
Penn
5
Baltimore (Md.)
4
Virginia
4
West Virginia
4
Philadelphia (Pa.)
3
Delaware River
2
East River
2
Honesdale (Pa.)
2
New England
2
Northeastern States
2
Wayne County
2
Wayne County (Pa.)
2
Atlantic City
1
Atlantic States
1
Carbondale (Pa.)
1
Chesapeake and Ohio Canal (Md. and Washington, D.C.)
1
Finger Lakes Region
1
Florence (N.J.)
1
Great Britain
1
Hoosac Tunnel (Mass.)
1
Hudson River (N.Y. and N.J.)
1
Jefferson Co
1
Kansas
1
Kent Co
1
Kentucky
1
Lackawanna and Susquehanna Railroad Company
1
Little Creek Neck
1
Long Beach (N.J.)
1
Louisville
1
Middle Atlantic States
1
Middle West
1
Missouri
1
North River
1
Ohio River Valley
1
Ontario County (N.Y.)
1
Schuylkill County, Pa
1
Schuylkill River (Pa.)
1
Shelby
1
Sixth Street Skew Arch Bridge (Reading, Pa.)
1
Staten Island (New York, N.Y.)
1
Syracuse
1
more ...