State
Jordan River Pathway
Michigan
U.S. Corps of Engineers
Josh Park Memorial Trail
Arkansas
Backcountry Trail, Urban Trail
USDA Forest Service
Joyce Kilmer Memorial Loop Trail
North Carolina
Backcountry Trail
Jubilee Lake
Oregon
Junction and Breakwater Trail
Delaware
Backcountry Trail, Rail Trail
Nonprofit
Juniata River Water Trail
Pennsylvania
Water Trail (other)
U.S. Fish and Wildlife Service
Kanatak Trail
Alaska
Kankakee River Water Trail
Indiana
National Water Trail
National Park Service
Kansas River Trail
Kansas
City, Town, or County
Karina Miller Preserve Loop Trail
Georgia
Kaskaskia River Confluence Trail
Illinois
Kathryn Abbey Hanna Park Trail System
Florida
Kaupo Trail
Hawaii
Kaw River Trail
Private
Kelly's Run-Pinnacle Trail System
Kelsey Trail (Elbow Springs-Lake Harrington)
California
Kettle Crest
Washington
Bureau of Land Management
King Range Trail
Kingfisher Trail
Kings Highway Community Park Trail
South Carolina