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

City, Town, or County

Illinois Prairie Path

Illinois

Rail Trail

USDA Forest Service

Illinois River

Oregon

Backcountry Trail

USDA Forest Service

Inaja Memorial Nature

California

Backcountry Trail