 On June 25, 1855 the United States Government established the Warm Springs Indian Reservation as part of a treaty with the four bands of the Tenino people as well as three of the bands of the neighboring Wasco.The Dalles Tenino, Tygh, Wyam, and Dock-Spus were effectively forced from their historic homelands to the new reservation in 1857, with the Wasco bands and other Chinookan-speaking neighbors following in 1858.According to the 1858-59 report of the reservation, some 850 Tenino individuals had been relocated there by that date, with another 160 members of the Wyam and Dock-Spus bands not yet relocated.