Region
West (U.S.)
121
California
46
Oregon National Historic Trail
26
Oregon
17
United States
17
Southwest, New
13
Utah
10
Northwestern States
6
Salt Lake City (Utah)
6
California National Historic Trail
5
Sierra Nevada (Calif. and Nev.)
5
Death Valley (Calif. and Nev.)
4
Mexico
4
Astoria (Or.)
3
Central America
3
Rocky Mountains
3
Columbia River Valley
2
Hawaii
2
Nevada
2
New Mexico
2
Northwest, Pacific
2
Oregon Territory
2
Overland Trails
2
United States, West
2
Astoria, Oregon
1
Bozeman Trail
1
Butterfield Overland Trail
1
Butterfield trail
1
Canada
1
Chihuahua (Mexico : State)
1
City of Rocks National Reserve
1
City of Rocks National Reserve (Idaho)
1
Cowlitz Trail (Wash.)
1
Idaho
1
Knoxville Region (Tenn.)
1
Meek's Cutoff (Or.)
1
Mississippi River Valley
1
Missouri River
1
Missouri Valley
1
Montana
1
Ohio River Valley
1
Oklahoma
1
Pacific States
1
Platte River (Neb.)
1
Scotts Bluff County (Neb.)
1
Scotts Bluff National Monument (Neb.)
1
Seattle (Wash.)
1
Sierra Nevada
1
Tahoe, Lake (Calif. and Nev.)
1
Tahoe, Lake, Region (Calif. and Nev.)
1
more ...