Region
Colorado River
4
Colorado River (Colo.-Mexico)
4
North America
4
Southwest, New
4
United States
4
Colorado (Col.-Mexique : Fleuve)
2
Colorado River Valley
2
États-Unis (Nouveau Sud-Ouest)
2
New Southwest
2
Colorado River Valley (Colo.-Mexico)
1
États-Unis (Ouest)
1
West (U.S.)
1
West United States
1