USDA Forest Service
Bucking Mule Falls Trail
Wyoming
Backcountry Trail
U.S. Corps of Engineers
Buckskin Nature Trail
Arkansas
State
Buffalo Track Canyon Trail
Kansas
Bull Run - Occoquan Trail
Virginia
Frontcountry Trail
U.S. Fish and Wildlife Service
Bulls Island Wildlife Trail
Georgia
National Park Service
Bumpass Hell
California
City, Town, or County
Burdette Park/University of Southern Indiana
Indiana
Burnside Park Nature Trail
Mississippi
Burr Oak Nature Trail
Nonprofit
Bush Mountain
Buttercup Valley Trail
Ohio
Frontcountry Trail, Urban Trail
Caberfae Way Snowmobile
Michigan