Subject
Frontier and pioneer life
822
Indians of North America
386
West (U.S.) Description and travel
340
Colorado History
281
Overland journeys to the Pacific
244
West (U.S.) History
232
Consumer protection
221
Colorado
218
Mexico History
170
Gold mines and mining
154
California Gold discoveries
147
California Description and travel
146
Texas History
143
Latter Day Saints
130
Missions
130
Colorado Description and travel
127
West (U.S.)
124
United States Description and travel
123
Historic sites
120
History
116
California History
115
Natural history
114
United States Foreign relations
112
Indians of North America Wars
111
Mines and mineral resources
111
United States Discovery and exploration
111
Texas Description and travel
106
Flood insurance
100
Pioneers
96
National parks and reserves
91
Excavations (Archaeology)
90
Fur trade
88
Mexico Description and travel
86
New Mexico History
85
Cowboys
84
Mexican War, 1846-1848
84
Indians of North America Government relations
83
Northwest, Canadian Description and travel
83
Ranch life
81
Southwest, New Description and travel
78
Southwest, New History
78
Travel
74
Crime
71
Alaska Description and travel
70
Mexico Antiquities
69
Louisiana History
68
Rocky Mountains
65
United States History
64
Cattle trade
63
Latin America History
63
more ...