The Koso language formed the westernmost extension of the Shoshoni-Comanche branch of the Shoshonean division of the Uto-Aztecan linguistic stock.
Koso Indians. Significance unknown.
Ke-at, given by Gatschet (Wheeler Survey, p. 411, 1879).
Panamint, name more often used.
Location. On a barren tract of land in the southeastern part of the State between the Sierra and the State of Nevada, and including Owens Lake, the Coso, Argus, Panamint, and Funeral Mountains and the intervening valleys.
Population. Kroeber (1925) estimates an aboriginal Koso population of not over 500; since 1880 they have been placed at about 100 to 150.