Subject
West (U.S.) Description and travel
48
United States Discovery and exploration
35
West (U.S.) History
23
Frontier and pioneer life
17
West (U.S.)
10
West (U.S.) Discovery and exploration
10
Indians of North America
8
United States Description and travel
8
United States Territorial expansion
8
Explorers
7
Rocky Mountains
6
United States History
6
Hunting
5
Overland journeys to the Pacific
5
Great Salt Lake (Utah)
4
Natural history
4
Trails
4
Fur trade
3
Historic sites
3
History
3
Indians of North America Wars
3
Mississippi River Description and travel
3
National parks and reserves
3
New Mexico Description and travel
3
Pacific States Description and travel
3
Pioneers
3
United States
3
United States Territorial expansion History
3
West (U.S.) Social life and customs
3
Colorado River (Colo.-Mexico) Discovery and exploration
2
Conservationists
2
Cowboys History
2
Fur trade History
2
Geologists
2
Indians of North America History
2
Utah Description and travel
2
Utah History
2
West (U.S.) Civilization
2
West (U.S.) Environmental conditions
2
West (U.S.) Exploration
2
West (U.S.) History, Military
2
American fiction Themes, motives
1
Anecdotes
1
Anti-imperialist movements History
1
Archaeologists
1
Archaeology Philosophy
1
Archaeology and history
1
Arid regions
1
Artists
1
Asia Foreign public opinion, American
1
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