Region
Montana
8
Oregon
4
Arizona
3
Missouri
3
Alaska
2
Colorado
2
Ohio
2
Rocky Mountains
2
West (U.S.)
2
Big Spring Region (Carter County)
1
Black Hills (S.D. and Wyo.)
1
Cherokee National Forest (Tenn.)
1
Clark County
1
Coeur d'Alene Mining District
1
Custer State Park
1
Deschutes River
1
Durango Region
1
Hocking County
1
Idaho
1
Jefferson County
1
Lolo National Forest (Mont.)
1
Mark Twain National Forest
1
Miller Creek Watershed (Park County)
1
Mount Zirkel Wilderness
1
Nelsonville
1
Nevada
1
New Mexico
1
Newberry Volcano
1
Northwest, Pacific
1
Ocoee River (Ga. and Tenn.)
1
Ocoee River Region (Ga. and Tenn.)
1
Park County
1
Routt National Forest
1
Russell Fiord
1
San Francisco Volcanic Field
1
San Francisco Volcanic Field (Ariz.)
1
San Miguel County
1
South Dakota
1
Steamboat Creek Watershed (Douglas County and Lane County)
1
Tenmile Creek Watershed (Lewis and Clark County)
1
Umpqua River Watershed
1