Region
West (U.S.)
1,094
United States
238
West United States
17
United States, West
15
Canada, Western
14
California
12
Missouri River
12
Oregon National Historic Trail
12
Mississippi River Valley
11
Northwest, Canadian
9
Canada
8
Colorado
8
Great Plains
8
Nevada
8
Southern States
8
North America
7
Columbia River
6
Utah
6
America
5
Middle West
5
Missouri
5
New York (State)
5
Southwest, New
5
Texas
5
West (U. S.)
5
Mexico
4
New Mexico
4
Oregon
4
Southwestern States
4
Yellowstone National Park
4
Arizona
3
British Columbia
3
Frontier and pioneer life
3
Great Basin
3
Great Britain
3
Iowa
3
Japan
3
Mexican-American Border Region
3
Mormon Pioneer National Historic Trail
3
New York
3
Northwest, Old
3
Northwest, Pacific
3
Rocky Mountains
3
Saint Louis (Mo.)
3
San Francisco (Calif.)
3
Santa Fe National Historic Trail
3
Yosemite National Park (Calif.)
3
American River (Calif.)
2
Arkansas
2
Asia
2
more ...