USDA Forest Service

Big Four Ice Caves Trail

Washington

Backcountry Trail

National Park Service

Big Glassy Trail

North Carolina

Backcountry Trail, Frontcountry Trail

State

Big Hill Pond

Tennessee

Frontcountry Trail

National Park Service

Big Hole Battlefield

Montana

Backcountry Trail

USDA Forest Service

Big Sky Snowmobile Trail

Montana

Backcountry Trail

USDA Forest Service

Big Springs Water Trail

Idaho

Backcountry Trail

USDA Forest Service

Big Trees

California

USDA Forest Service

Big Wood River Trail

Idaho

Backcountry Trail

USDA Forest Service

Bill Williams Mountain Trail

Arizona

Backcountry Trail

USDA Forest Service

Biltmore Campus Trail

North Carolina

Backcountry Trail

Private

Binder Winter Park Nordic Trail

Michigan

Backcountry Trail

State

Bird to Gird Pathway / Indian to Girdwood Trail

Alaska

Backcountry Trail, Rail Trail