NPS Photo Population Growth in the SouthwestFour years after Bandelier's visit, Arizona's population grew quickly. People arrived by wagon trains and trail rides. The Southern Pacific Railroad reached Phoenix in 1887. Businesses and businesses soon followed. By 1900, Phoenix had 5,554 residents. which made farming, water, and flood control in the Southwest challenging. This resulted in a series of events that would have big effects on the cliff houses and their future. Water and the Roosevelt DamPhoenix experienced severe floods. The Salt River overwhelmed weak dams. Water storage and control were insufficient. The Salt River Water Users group was formed. They, along with other state and territorial groups, urged Congress to act. In 1902, President Theodore Roosevelt signed the National Reclamation Act. This authorized damming western rivers. The Bureau of Reclamation was created. Arizona Territory was chosen for the first dam. By 1903, plans were made to build Theodore Roosevelt Dam. It would be built where Tonto Creek meets the Salt River. Tonto National Monument's early yearsThe cliff structures are a mere four miles from where the dam was being built. Workers, along with their families and guests, started to investigate these sites. Uncommon photographs from this era depict the transformations occurring at these dwellings. This phenomenon was evident across the southwestern region of the United States. The American Antiquities Act of 1906 ended the theft of historical sites. This permitted the president to create monuments of importance both spontaneously and culturally.
NPS Photo Southern Pacific RailroadIn 1911, the Roosevelt Dam was finally built. Arizona became a state in 1912. Later, the Southern Pacific Railroad created a hotel near the dam and was offering tours. Tonto National Monument was one of their highlights on the Apache Trail Tour. National Park Service's early history at TontoThe official history of Tonto National Monument dates from 1907. But the period of protection and preservation began in July 1933. Started with the U.S. Forest Service, to the Department of the Interior: National Park Service.
NPS Photo Preservation and Visitor ServicesRangers set up facilities and trails. William Duffen excavated and stabilized the Lower Cliff Dwelling. He was a graduate student at the University of Arizona. |
Last updated: June 21, 2026