. "Columbia Plateau Tribes" . . . "Confederated Tribes of the Umatilla Indian Reservation" . . "CTUIR" . . "Umatilla" . . "Umatilla Indian Reservation" . . . . . . . . . . . "Confederated Tribes" . . "Confederated Tribes of the Umatilla" . . . . . . . "Confederated Tribes of the Umatilla Indian Reservation" . "Umatilla Reservation" .