USDA Forest Service

Beartooth Loop Trail

Wyoming

Backcountry Trail

U.S. Corps of Engineers

Bearwaller Gap Hiking Trail

Tennessee

Backcountry Trail

U.S. Fish and Wildlife Service

Beaver Creek Water Trail

Alaska

Backcountry Trail, Water Trail (other)

Nonprofit

Beaver Lake Nature Center Trails System

New York

Backcountry Trail, Water Trail (other)

City, Town, or County

Belle Isle Bicycle Trail

Michigan

U.S. Corps of Engineers

Benbrook Lake Horseback

Texas

USDA Forest Service

Benham Trail

Arizona

Backcountry Trail

U.S. Corps of Engineers

Bennington Lake Trail System

Washington

Backcountry Trail, Urban Trail

City, Town, or County

Berg/Animas Trail

New Mexico

Backcountry Trail, Frontcountry Trail, Urban Trail

USDA Forest Service

Berryman Trail

Missouri

Backcountry Trail

Nonprofit

Bethel Spring Recreational Preserve Trail System

Alabama

Backcountry Trail

Bureau of Land Management

Betty's Kitchen Interpretative

Arizona

City, Town, or County

Beyer Farm Trail

Indiana

Frontcountry Trail

City, Town, or County

Bicentennial Trail

Utah

Backcountry Trail

State

Big Bend Saltwater Paddling Trail

Florida

Water Trail (other)

USDA Forest Service

Big Creek Trail System

Idaho

Backcountry Trail

City, Town, or County

Big Dry Creek Trail

Colorado

Urban Trail

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