Region
West (U.S.)
17
United States
8
Colorado
6
Utah
6
Southwest, New
4
Santa Fe National Historic Trail
3
Great Salt Lake (Utah)
2
Minnesota
2
Nebraska
2
New River Gorge National Park and Preserve
2
New River Gorge National Park and Preserve (W. Va.)
2
Rocky Mountains
2
Voyageurs National Park
2
Voyageurs National Park (Minn.)
2
West Virginia
2
Alabama
1
Appalachian Mountains
1
Appalachian Trail
1
Arches National Park
1
Arkansas
1
Aspen
1
Buffalo National River (Ark.)
1
California
1
California National Historic Trail
1
Chihuahua Trail
1
El Camino Real de Tierra Adentro National Historic Trail (N.M. and Tex.)
1
Escalante Canyon (Kane County)
1
Grand Teton National Park
1
Grand Teton National Park (Wyo.)
1
Idaho
1
Iowa
1
John D. Rockefeller, Jr., Memorial Parkway
1
John D. Rockefeller, Jr., Memorial Parkway (Wyo.)
1
Lewis and Clark National Historic Trail
1
Mormon Road
1
Nevada
1
New Mexico
1
Northwest, Canadian
1
Old Spanish Trail
1
Pacific Coast
1
Pacific States
1
Pony Express National Historic Trail
1
Rock Creek Park
1
Rock Creek Park (Washington, D.C.)
1
Selma to Montgomery National Historic Trail (Ala.)
1
Texas
1
Washington (D.C.)
1
Wyoming
1