Category
page 1Protected areas established in 1923
Appalachian Trail
2,198.4-mile (3,538 km) trail going through fourteen US states managed by the National Park Service
Aztec Ruins National Monument
National monument in New Mexico, United States
Hopewell Culture National Historical Park
United States national historical park
Hovenweep National Monument
US national monument in San Juan County, Utah, and Montezuma County, Colorado in the United States
Kaniv Nature Reserve
nature reserve in Cherkasy Oblast, Ukraine
Pipe Spring National Monument
national monument in Mohave County, Arizona, United States
Allegheny National Forest
National Forest in the United States
Ntangki National Park
national park in India
Tully Gorge National Park
national park in Queensland, Australia
Upper Pine Bottom State Park
state park in Lycoming County, Pennsylvania, United States
Petit Jean State Park
state park in Arkansas, United States