Answer:
In the 1855 treaty with the Yakama, 14 bands and tribes ceded 11.5 million acres to the United States. The bands and tribes in the Yakama confederation are the Kah-milt-pah, Klickitat, Klinquit, Kow-was-say-ee, Li-ay-was, Oche-chotes, Palouse, Pisquose, Se-ap-cat, Shyiks, Skinpah, Wenatshapam, Wishram, and Yakama.
Explanation: