State
Bird to Gird Pathway / Indian to Girdwood Trail
Alaska
Backcountry Trail, Rail Trail
USDA Forest Service
Bizz Johnson Trail
California
Rail Trail
Bureau of Land Management
Black Canyon National Recreation Trail
Arizona
Backcountry Trail
Other Federal
Black Canyon Water Trail
Arizona, Nevada
National Water Trail
Black Cherry Trail
Pennsylvania
Black Creek Hiking Trail
Mississippi
City, Town, or County
Black Creek System
Ohio
Nonprofit
Black History Trail
District of Columbia
Urban Trail
Black Point Trail
U.S. Corps of Engineers
Black River Hike and Bike Trail
Missouri
Backcountry Trail, Urban Trail
Black Willow Water Trail
Water Trail (other)
National Park Service
Blackberry Trail
South Dakota
