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

USDA Forest Service

Black Cherry Trail

Pennsylvania

Backcountry Trail

USDA Forest Service

Black Creek Hiking Trail

Mississippi

Backcountry Trail

City, Town, or County

Black Creek System

Ohio

Nonprofit

Black History Trail

District of Columbia

Urban Trail

USDA Forest Service

Black Point Trail

California

Backcountry Trail

U.S. Corps of Engineers

Black River Hike and Bike Trail

Missouri

Backcountry Trail, Urban Trail

U.S. Corps of Engineers

Black Willow Water Trail

Pennsylvania

Water Trail (other)

National Park Service

Blackberry Trail

South Dakota

Backcountry Trail

City, Town, or County

Blackhawk Trail

Iowa

Backcountry Trail