Gila Cliff Dwellings National Monument
Gila Cliff Dwellings National Monument is a U.S. National Monument created to protect Mogollon cliff dwellings in the Gila Wilderness on the headwaters of the Gila River in southwest New Mexico. The 533-acre (2.16 km2) national monument was established by President Theodore Roosevelt through executive proclamation on November 16, 1907.
Source: Wikipedia — Gila Cliff Dwellings National Monument (CC BY-SA 4.0)