Sioux (Teton, Yankton, Yanktonai, Santee) Sahaptian: Nez Perce, Sahaptin, Umatilla, Palus Cayuse Salish: Kalispel, Coeur d'Alene, Flathead, Spokane, Sanpoil...

Company K was sent to join the infantry column and with it moved to the Umatilla Agency, near which the hostiles were reported to be. Here the Indians attacked...