Southern Athabaskan (also Apachean) is a subfamily of Athabaskan languages spoken primarily in the Southwestern United States (including Arizona, New Mexico, Colorado, Utah, Sonora) with two outliers in Oklahoma and Texas. Those languages are spoken by various groups of Apache and Navajo peoples. In the northern versions, Athabaskan is spoken by many indigenous groups of peoples in Alaska and Canada. It represents the third major wave of ancient migration from Asia. The Western Apache and Navajo identify as Nnee biyáti’ or Ndee biyáti’, and Diné bizaad or Naabeehó bizaad, respectively.