Region
United States
45
Colorado
10
Alaska
9
New Mexico
8
Oregon
8
Mississippi
6
Montana
6
Utah
6
Washington (State)
6
Idaho
5
Washington (D.C.)
5
Arizona
4
Connecticut
4
Nevada
4
South Dakota
4
California
3
Georgia
3
Maryland
3
Tennessee
3
Baltimore
2
Delaware
2
Illinois
2
Jackson
2
Louisiana
2
Mountains to Sound Greenway (Wash.)
2
North Carolina
2
Pennsylvania
2
Rhode Island
2
South Atlantic States
2
Texas
2
Virginia
2
West (U.S.)
2
White River National Forest
2
Wyoming
2
Abraham Lincoln National Heritage Area (Ill.)
1
Acadia National Park (Me.)
1
Alpine Lakes Wilderness (Wash.)
1
American Discovery Trail
1
American Falls Reservoir
1
Anchorage
1
Arapaho National Forest (Colo.)
1
Atlanta
1
Auburn
1
Black Hills National Forest (S.D. and Wyo.)
1
Blackstone River Valley (Mass. and R.I.)
1
Cape Hatteras National Seashore
1
Cape Hatteras National Seashore (N.C.)
1
Carson National Forest (N.M.)
1
Coconino National Forest
1
Coltsville National Historical Park (Hartford, Conn.)
1
more ...