USDA Forest Service

Riverside Trail

Oregon

Backcountry Trail

USDA Forest Service

Roan Mountain Gardens Trail

North Carolina

Backcountry Trail

Nonprofit

Roaring Run Trail

Pennsylvania

Backcountry Trail, Frontcountry Trail, Rail Trail, Urban Trail

USDA Forest Service

Robert Frost Interpretive Trail

Vermont

City, Town, or County

Robert McClory Trail

Illinois

Rail Trail

City, Town, or County

Robert O. Cook Memorial Arboretum

Wisconsin

U.S. Corps of Engineers

Robinson Point Nature Trail

Arkansas

Backcountry Trail

City, Town, or County

Roby Recreation Trail

Illinois

Frontcountry Trail, Urban Trail

Private

Roche Harbor Trails

Washington

Backcountry Trail, Urban Trail

National Park Service

Rock Castle Gorge

Virginia

USDA Forest Service

Rock Creek - Deep Creek Trail

Wyoming

City, Town, or County

Rock Creek Trail

Maryland

Frontcountry Trail, Urban Trail