Canyons of the Ancients National Monument is a national monument protecting an archaeologically-significant landscape located in the southwestern region of the U.S. state of Colorado. The monument's 176,056 acres (71,247 ha) are managed by the Bureau of Land Management, as directed in the Presidential proclamation which created the site on June 9, 2000. Canyons of the Ancients encompasses and surrounds three of the four separate sections of Hovenweep National Monument, which is administered by the National Park Service. The monument was proclaimed in order to preserve the largest concentration of archaeological sites in the United States, primarily Ancestral Puebloan ruins. As of 2005, over 6,000 individual archeological sites had been identified within the monument.
Canyons of the Ancients National Monument is located 9 miles west of Pleasant View, Colorado in southwestern Colorado. The monument's northern and eastern boundaries are canyons. Its western boundary is the Colorado-Utah state border. Lands south are bordered by the Ute Mountain Reservation and McElmo Creek.
Ancient Pueblo people lived in the Canyons of the Ancients in the 900s; Lowry Pueblo, built during the Great Pueblo period, was built atop pit-house built in the 900s.
Colorado (i//, or //) is a U.S. state encompassing most of the Southern Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is part of the Western United States, the Southwestern United States, and the Mountain States. Colorado is the 8th most extensive and the 22nd most populous of the 50 United States. The United States Census Bureau estimates that the population of Colorado was 5,187,582 on July 1, 2012, an increase of +3.15% since the 2010 United States Census.