Indigenous peoples -- North America, Plateau -- Walla Walla Tribal Nation

Walla Wall are a Sahaptin indigenous people of the Northwest Plateau. Walla Wallas share land and a governmental structure with the Cayuse and the Umatilla tribes as part of the Confederated Tribes of the Umatilla. [https://en.wikipedia.org/wiki/Walla_Walla_people ; https://ctuir.org/]