Yahi dialect

Yahi was a dialect of the extinct Yana language that was spoken in the upper Sacramento Valley area, roughly in the area between Mill Creek and Deer Creek. It is one of the southern dialects of Yana, which is a language isolate, though with possible connections to Hokan. Yana is known as having been the language of Ishi, the last surviving Yana Indian, who worked with anthropologists to make a record of the language and culture.