The Lake (Senijextee, Gens des Lacs) lived on both sides of the Columbia River from Kettle Falls in northeastern Washington into British Columbia to the Arrow Lakes, on the Kettle River, and on the lower Kootenay River. Their culture was of the general Plateau type and they spoke an Interior Salish language. Most of them now live on or near the Colville Indian Reservation in northeastern Washington as part of the Confederated Tribes of the Colville Reservation and are generally assimilated into European-American society. Their Current population is unknown, but they probably number about three hundred.
Curtis, Edward (1911). The North American Indian. Vol. 11. Norwood, Mass. Reprint. Johnson Reprint Corp., 1970.
Teit, James A. (1930). The Salishan Tribes of the Western Plateau. U.S. Bureau of American Ethnology, 45th Annual Report (1927-1928), 37-396. Washington, D.C.