Subject
West (U.S.) History
254
Frontier and pioneer life
200
West (U.S.)
144
West (U.S.) Description and travel
117
Indians of North America
53
Indians of North America Wars
41
West (U.S.) In literature
37
Geology
36
West (U.S.) Social life and customs
36
West (U.S.) Discovery and exploration
35
Overland journeys to the Pacific
31
Cowboys
28
History
23
Geology, Stratigraphic
21
Fur trade
20
American literature History and criticism
18
Pioneers
18
Crime
16
Explorers
16
Western stories History and criticism
16
Military life
15
Ranch life
15
United States Territorial expansion
15
Art, American
14
Environmental policy
14
Indians of North America History
14
Outlaws
14
Travel
14
United States History
14
Women
14
United States Discovery and exploration
13
West (U.S.) Politics and government
13
Authors, American
12
Cattle trade
12
Mines and mineral resources
12
West (U.S.) Historiography
12
Women pioneers
12
Artists
11
Criticism and interpretation
11
Geology, Structural
11
West (U.S.) Civilization
11
West (U.S.) Social conditions
11
American literature
10
Oregon National Historic Trail
10
Water-supply
10
West (U.S.) Economic conditions
10
West (U.S.) Environmental conditions
10
Women History
10
Birds
9
Natural history
9
more ...