USDA Forest Service
Boulder River Natural Bridge and Falls Trail
Montana
Boundary Trail
Oregon
Backcountry Trail
Washington
Boundary Trail - Kangaroo Segment
California
U.S. Corps of Engineers
Bridge Rock Trail
Arkansas
Bridger Foothills
National Park Service
Bright Angel Trail
Arizona
Nonprofit
Bronx River Blueway
New York
National Water Trail
City, Town, or County
Brownsville Historic Battlefield Trail
Texas
Urban Trail
Brushy Creek Regional Trail & Conservation Corridor
Buck Canyon Trail
Buckeye Trail
