Region
États-Unis (Ouest)
21
West (U.S.)
21
West United States
18
United States
10
États-Unis
5
Amérique du Nord
3
North America
3
United States, West
3
California
2
Californie
2
Canada
2
Canadian Northwest
2
Columbia (Fleuve)
2
Columbia River
2
Missouri (Rivière)
2
Missouri River
2
Northwest, Canadian
2
Pacific States
2
Rocheuses, Montagnes
2
Rocky Mountains
2
Allemagne
1
Colorado (Col.-Mexique : Fleuve)
1
Colorado River
1
Colorado River (Colo.-Mexico)
1
Colorado River Valley
1
États-Unis (Nouveau Sud-Ouest)
1
Germany
1
Grand Lac Salé (Utah)
1
Great Salt Lake
1
Great Salt Lake (Utah)
1
Mexico
1
Mexique
1
Mississippi River Valley
1
Mississippi, Vallée du
1
Missouri River Valley
1
Missouri, Vallée du
1
New Southwest
1
Nord-Ouest canadien
1
Nordamerika
1
Northwest, Pacific
1
Pacific Northwest
1
Salé, Grand lac (Utah)
1
Southwest, New
1
Utah
1