City, Town, or County

Monon Rail-Trail

Indiana

Rail Trail

Nonprofit

Monte Sano Nature Preserve Trail System

Alabama

Backcountry Trail, Frontcountry Trail, Rail Trail, Urban Trail

U.S. Fish and Wildlife Service

Monte Vista Walking Trail

Colorado

Frontcountry Trail

City, Town, or County

Montevallo Greenway Trail

Alabama

Backcountry Trail, Frontcountry Trail

U.S. Corps of Engineers

Montlake Cut National Waterside Trail

Washington

Urban Trail

Nonprofit

Montour Trail

Pennsylvania

Rail Trail

State

Moraine Hills Trail System

Illinois

Backcountry Trail

National Park Service

Morning Glory

Wyoming

Backcountry Trail

USDA Forest Service

Morrell Falls

Montana

Backcountry Trail

U.S. Corps of Engineers

Mossy Bluff Trail

Arkansas

Backcountry Trail

USDA Forest Service

Mount Blue Sky

Colorado

Backcountry Trail

USDA Forest Service

Mount Charleston

Nevada

Backcountry Trail