Region
Colorado
15
Nevada
13
Wyoming
10
Idaho
8
Utah
8
Arizona
5
Montana
4
New Mexico
4
Uncompahgre River Watershed
4
California
3
Oregon
3
United States
3
West (U.S.)
3
El Malpais National Monument (N.M.)
2
Alaska
1
Beaverhead County
1
Centennial Mountains (Idaho and Mont.)
1
Chopaka Mountain
1
Clark County
1
Esmeralda County
1
Grand Junction region
1
Grand Wash Cliffs Wilderness
1
Grand Wash Cliffs Wilderness (Ariz.)
1
Madison County
1
Missouri
1
Mohave County
1
Nye County
1
Ozark National Scenic Riverways
1
Ozark National Scenic Riverways (Mo.)
1
Pueblo Mountain Wilderness (Or. and Nev.)
1
Upper Sonoran Region
1
Washakie County
1
Washington (State)
1
Washington County
1
Yuma Region
1