USDA Forest Service

Mount Taylor

New Mexico

Backcountry Trail

USDA Forest Service

Mount Timpanogos Trail

Utah

Backcountry Trail

Private

Mountain Laurel Trail

Virginia

Backcountry Trail

Nonprofit

Mountains to Sea Trail

California

Frontcountry Trail, Urban Trail

State

Mountains-to-Sea Trail - Blue Ridge Parkway Segment

North Carolina

Backcountry Trail

Nonprofit

Mountains-to-Sea Trail - Falls Lake South Shore Trail Section

North Carolina

Backcountry Trail

City, Town, or County

Mt. Airy Forest Explorers

Ohio

Backcountry Trail

USDA Forest Service

Mt. Bailey

Oregon

Backcountry Trail

USDA Forest Service

Mt. Edgecombe

Alaska

Backcountry Trail

USDA Forest Service

Mt. Helena Ridge

Montana

Backcountry Trail

USDA Forest Service

Mt. Naomi Peak Trail

Utah

Backcountry Trail

City, Town, or County

Mt. Umunhum Trail

California

Backcountry Trail

U.S. Fish and Wildlife Service

Mud Pond Trail

New Hampshire

Backcountry Trail

Bureau of Land Management

Muddy Mountain Interpretive Nature Trail

Wyoming

State

Mudlick Trail

Missouri

Backcountry Trail

City, Town, or County

Mullet Hall Equestrian Trail System

South Carolina

Backcountry Trail

U.S. Fish and Wildlife Service

Munch's Coulee Hiking Trail

North Dakota

Backcountry Trail

National Park Service

Munising Cross Country Ski Trail

Michigan

State

Murrell Home Nature Trail

Oklahoma

Backcountry Trail

Other Federal

Muscle Shoals

Alabama

Frontcountry Trail