Mattole language

Mattole, or Mattole–Bear River, is an extinct Athabaskan language once spoken by the Mattole and Bear River peoples of northern California. It is one of the four languages belonging to the California Athabaskan cluster of the Pacific Coast Athabaskan languages. It was found in two locations: in the valley of the Mattole River, immediately south of Cape Mendocino on the coast of northwest California, and a distinct dialect on Bear River, about 10 miles to the north. The Mattole have expressed interest in reviving their language.^[2]

Mattole and other California Athabaskan languages.

Mattole
Mattole–Bear River
Native to	United States
Region	California
Ethnicity	Mattole, Bear River
Extinct	1930s (Mattole) after 1922 (Bear River dialect)
Language family	Dené–Yeniseian? Na-Dené Athabaskan Pacific Coast Athabaskan Mattole
Dialects	Bear River
Language codes
ISO 639-3	mvb
Glottolog	matt1238
Mattole is classified as Extinct by the UNESCO Atlas of the World's Languages in Danger [1]