Region
Alabama
4
Alaska
5
Alcona County
1
Alpine Loop National Back Country Byway (Colo.)
2
American Fork Canyon
1
American Fork Canyon (Utah)
1
American Samoa
1
Anchorage
1
Apache Kid Wilderness
1
Apache Kid Wilderness (N.M.)
1
Appalachian Region
1
Appalachian Trail
1
Aravaipa Canyon
1
Arches National Park
1
Arches National Park (Utah)
1
Arizona
8
Arkansas
1
Balcones Canyonlands National Wildlife Refuge
1
Balcones Canyonlands National Wildlife Refuge (Tex.)
1
Bangs Canyon
1
Bangs Canyon (Colo.)
1
Black Elk Wilderness
1
Black Elk Wilderness (S.D.)
1
Black Hills National Forest (S.D. and Wyo.)
6
Blue Ridge Parkway (N.C. and Va.)
14
Buckeye Trail (Ohio)
2
California
18
California National Historic Trail
2
Cape Perpetua Scenic Area
2
Cape Perpetua Scenic Area (Or.)
2
Caribou-Targhee National Forest
1
Carson National Forest
1
Carson National Forest (N.M.)
1
Cascade Range
1
Cascade-Siskiyou National Monument
1
Castle Peak Region (Eagle County)
1
Castle Peak Region (Eagle County, Colo.)
1
Catoctin Mountain Park
1
Catoctin Mountain Park (Md.)
1
Catron County (N.M.)
1
Cave Run Lake (Ky.)
1
Cave Run Lake Region
1
Cedar Breaks National Monument
1
Cedar Breaks National Monument (Utah)
1
Chattahoochee National Forest
1
Chattahoochee National Forest (Ga.)
1
Chequamegon National Forest
7
Chequamegon National Forest (Wis.)
8
Chequamegon-Nicolet National Forest
1
Chequamegon-Nicolet National Forest (Wis.)
1
more ...