Northern Athabaskan languages

Northern Athabaskan is a geographic sub-grouping of the Athabaskan language family spoken by indigenous peoples in the northern part of North America, particularly in Alaska (Alaskan Athabaskans), the Yukon and the Northwest Territories. The Northern Athabaskan languages consist of 31 languages that can be divided into seven geographic subgroups.
Central Alaska–Yukon.
A. Koyukon
B. Tanana–Tutchone
C. Kutchin–Han
Northwestern Canada.
A. Cordillera
B. Mackenzie
C. Chipewyan