Region
The West
West (U.S.)
7
United States
6
Rocky Mountains
4
Columbia River
3
Missouri River
3
Mississippi River Valley
2
New Mexico
2
Northwest, Canadian
2
Northwest, Old
2
British Columbia
1
California
1
Canada
1
Canada, W.
1
Estes Park (Col.)
1
Estes Park (Colo.)
1
Manitoba
1
Mexico
1
Minnesota
1
Mississippi River
1
North America
1
Northwestern States
1
Ohio River
1
Oregon National Historic Trail
1
South America
1
Southwest, New
1
Superior, Lake
1
Utah
1