Agua Fria National Monument
Agua Fria National Monument is in the U.S. state of Arizona, approximately 40 miles (64 km) north of downtown Phoenix, Arizona. Created by Presidential proclamation on January 11, 2000, the 72,344-acre (113 sq mi; 293 km2) monument is managed by the Bureau of Land Management, an agency within the U.S. Department of the Interior.
Source: Wikipedia — Agua Fria National Monument (CC BY-SA 4.0)