Subject
Overland journeys to the Pacific
West (U.S.) Description and travel
21
Frontier and pioneer life
19
West (U.S.) History
18
California Gold discoveries
11
Oregon National Historic Trail
11
Pioneers
9
Donner Party
4
Pioneers History
4
West (U.S.) Discovery and exploration
4
Oregon Territory History
3
Women pioneers
3
Astoria (Or.) History
2
Coaching (Transportation)
2
El Morro National Monument (N.M.)
2
Fur trade
2
Indians of North America
2
Latter Day Saint churches History
2
Oregon Description and travel
2
Rocky Mountains
2
Southwest, New Description and travel
2
Southwest, New History
2
Trails
2
Voyages to the Pacific coast
2
West (U.S.)
2
Airplane crash survival
1
Alaska Description and travel
1
Animals History
1
Botany
1
Boulder (Colo.)
1
Butterfield Overland Trail
1
California Description and travel
1
California History
1
California National Historic Trail
1
California National Historic Trail History
1
Chinook Wawa language
1
Coaching (Transportation) History
1
Columbia River Valley Discovery and exploration
1
Columbia River Valley History
1
Death Valley (Calif. and Nev.)
1
Death Valley (Calif. and Nev.) History
1
Diaries
1
Excavations (Archaeology)
1
Fur trade History
1
Fur traders History
1
Gold Hill (Colo.)
1
Gold mines and mining History
1
Handcarts
1
Handcarts History
1
Historic sites
1
more ...