National Park Service

Grand Promenade Trail

Arkansas

Urban Trail

U.S. Corps of Engineers

Grand Trunk Trail

Massachusetts

Rail Trail

Nonprofit

Grandfather Trail

North Carolina

Backcountry Trail

State

Grandma Gatewood Memorial Hiking Trail

Ohio

Backcountry Trail

Bureau of Land Management

Grandstaff Canyon Trail

Utah

Backcountry Trail

USDA Forest Service

Granite Mountain

Arizona

Backcountry Trail

USDA Forest Service

Grasshopper Ridge Trail

Montana

Backcountry Trail

City, Town, or County

Grassroots

Wyoming

USDA Forest Service

Grays Peak Trail

Colorado

Backcountry Trail

U.S. Corps of Engineers

Grayson Lake Nature Trail

Kentucky

Backcountry Trail

Nonprofit

Great Allegheny Passage

Maryland, Pennsylvania

Backcountry Trail, Rail Trail, Urban Trail

Nonprofit

Great Barrington Housatonic River Walk

Massachusetts

Frontcountry Trail, Urban Trail

City, Town, or County

Great Calusa Blueway

Florida

Water Trail (other)

City, Town, or County

Great Miami River Recreation Trail

Ohio

Frontcountry Trail, Urban Trail

City, Town, or County

Great Miami River Watershed Water Trail

Ohio

National Water Trail

Nonprofit

Great Pinery Heritage Waterway

Wisconsin

National Water Trail

Commission

Great River Trail

Illinois

Frontcountry Trail, Rail Trail, Urban Trail

City, Town, or County

Great Western Nature Trail

Illinois

Rail Trail

City, Town, or County

Great Western Trail

Iowa

Frontcountry Trail, Rail Trail

Private

Greater Hazleton Rails to Trails

Pennsylvania

Rail Trail