Region
Colorado
32
Virginia
26
Ohio
25
Shenandoah National Park
24
Shenandoah National Park (Va.)
24
California
18
Cuyahoga Valley National Park
18
Cuyahoga Valley National Park (Ohio)
18
New Mexico
15
Blue Ridge Parkway (N.C. and Va.)
14
Oregon
14
Pacific Crest Trail
13
Washington (State)
12
Nevada
9
Utah
9
Wisconsin
9
Arizona
8
Chequamegon National Forest (Wis.)
8
North Carolina
8
Chequamegon National Forest
7
Wayne National Forest
7
West (U.S.)
7
Black Hills National Forest (S.D. and Wyo.)
6
Alaska
5
Humboldt National Forest (Nev.)
5
Klamath National Forest (Calif. and Or.)
5
Rocky Mountain Arsenal National Wildlife Refuge
5
Rocky Mountain Arsenal National Wildlife Refuge (Colo.)
5
Toiyabe National Forest (Nev. and Calif.)
5
Wayne National Forest (Ohio)
5
Alabama
4
Humboldt National Forest
4
Kentucky
4
Land Between the Lakes (Ky. and Tenn.)
4
Michigan
4
Pisgah National Forest (N.C.)
4
United States
4
Wyoming
4
Chesapeake and Ohio Canal (Md. and Washington, D.C.)
3
Chesapeake and Ohio Canal Region (Md. and Washington, D.C.)
3
Cibola National Forest
3
Dixie National Forest
3
Dixie National Forest (Utah)
3
Eldorado National Forest
3
Gifford Pinchot National Forest
3
Gifford Pinchot National Forest (Wash.)
3
Grand Canyon National Park
3
Grand Canyon National Park (Ariz.)
3
Little Snake River Region (Colo. and Wyo.)
3
Minnesota
3
more ...