Region
États-Unis
United States
18
Pennsylvania
2
Pennsylvanie
2
USA
2
Delaware
1
Delaware (N.Y.-Del. et N.J. : Fleuve)
1
Delaware River
1
Delaware River (N.Y.-Del. and N.J.)
1
Estados unidos
1
États-Unis (Ouest)
1
États-Unis (Sud)
1
Grandes Plaines
1
Great Plains
1
Mississippi (Fleuve)
1
Mississippi River
1
Mississippi River Valley
1
Mississippi, Vallée du
1
Philadelphia
1
Philadelphie
1
Southern States
1
Washington (D.C.)
1
West (U.S.)
1
West United States
1