Treaty of June 9, 1855
On June 9, 1855, the Treaty of Camp Stevens was signed between U.S. representatives and chiefs of the Walla-Walla, Cayuse, and Umatilla tribes. The treaty involved the ceded lands’ boundaries and established an Indian reservation for the tribes. In exchange, the U.S. government promised annuities, improvements on the reservation, and provisions for education, agriculture, and health. The tribes committed to maintaining peace with settlers and adhering to U.S. laws, also agreeing to restrictions regarding alcohol consumption.