NPS Photo Population Growth in the Southwest
With a growing population, farming, water, and flood control in the Southwest became an issue, thus setting in motion a series of events that would have dramatic effects on the cliff dwellings and their future. Water and the Roosevelt DamPhoenix suffered through numerous catastrophic floods as the Salt River ripped and tore through ineffective earthen dams. Water storage, availability, and control had reached their limits. The Salt River Water Users was formed and, with other states and territorial delegations, lobbied Congress for action. In 1902, President Theodore Roosevelt signed the National Reclamation Act authorizing damming of western rivers; the Bureau of Reclamation was created and the Arizona Territory was selected for the first dam. By 1903, plans were in place to build Theodore Roosevelt Dam at the confluence of Tonto Creek and the Salt River. Tonto National MonumentWhat was happening to the cliff dwellings was occurring across the American Southwest. Due to a growing concern over the destruction and looting of archeological sites, the American Antiquities Act was passed in 1906. This act authorized the president to establish monuments for places of natural and cultural significance. Areas such as Devil's Tower, Montezuma's Castle, Gila Cliff Dwellings, Chaco Canyon and many more were given protection under the Antiquities Act.
NPS Photo Southern Pacific RailroadRoosevelt Dam was completed in 1911; Arizona became a state in 1912. By then, the Southern Pacific Railroad had constructed a hotel near the dam and was offering tours. Tonto National Monument was one of the highlights on their Apache Trail Tour. National Park Service Early History The official history of Tonto National Monument dates from 1907, but the period of protection and preservation began in July 1933. On that date, Tonto National Monument was transferred from the Department of Agriculture, U.S. Forest Service, to the Department of Interior, National Park Service.
NPS Photo Preservation and Visitor ServicesEstablishing facilities, preparing trails, and stabilizing the cliff dwellings were routine activities conducted by rangers. In 1937, the Lower Cliff Dwelling was excavated and stabilized for the first time by William Duffen, a graduate student from the University of Arizona. |
Last updated: May 24, 2026