USDA Forest Service

Hoop Hole Trail

Virginia

Backcountry Trail

USDA Forest Service

Horse Ridge Trail

California

Backcountry Trail

Nonprofit

Horse-Shoe Trail - Warwick to FCSP Section

Pennsylvania

Backcountry Trail

State

Horseshoe Mountain

Arkansas

Backcountry Trail

U.S. Fish and Wildlife Service

Horton Slough Trail

Oklahoma

Backcountry Trail

Private

House Creek Greenway

North Carolina

Frontcountry Trail

Nonprofit

Houtzdale Line Trail

Pennsylvania

Rail Trail

Nonprofit

Hudson River Greenway Water Trail

New York

National Water Trail

Nonprofit

Hudson River School Art Trail

New York

Backcountry Trail

Nonprofit

Hudson Valley Rail Trail

New York

Rail Trail

City, Town, or County

Hugh S. Branyon Backcountry Trail

Alabama

Backcountry Trail

Bureau of Land Management

Hulls Gulch Interpretive Trail

Idaho

Backcountry Trail

State

Hunter Trail

Arizona

Backcountry Trail

Nonprofit

Huntington Museum Nature Trails

West Virginia

Backcountry Trail

National Park Service

Huron River Water Trail

Michigan

National Water Trail

City, Town, or County

Hyde Park Heritage Greenway Trail System

New York

Frontcountry Trail, Urban Trail

USDA Forest Service

Ice Age Trail in Langlade County

Wisconsin

Backcountry Trail

U.S. Fish and Wildlife Service

Icicle Creek Nature Trail

Washington

USDA Forest Service

Idaho Giant Red Cedar

Idaho

Backcountry Trail

USDA Forest Service

Ides Cove Loop

California

Backcountry Trail