Region
California
1
Californie
1
Colorado (Col.-Mexique : Fleuve)
2
Colorado River
3
Colorado River (Colo.-Mexico)
3
Colorado River Valley
1
États-Unis (Nouveau Sud-Ouest)
2
États-Unis (Ouest)
4
Grand Lac Salé (Utah)
1
Great Salt Lake
2
Great Salt Lake (Utah)
2
Nevada
1
New Southwest
2
North America
3
Pacific States
2
Rocheuses, Montagnes
2
Rocky Mountains
2
Salé, Grand lac (Utah)
1
Southwest, New
3
United States
8
Utah
3
West (U.S.)
6
West United States
5