Mono (pronounced /ˈmoʊnoʊ/) is a Native American language of the Numic group of Uto-Aztecan languages. It is spoken in the southern Sierra Nevada mountains and the Owens Valley of east-central California. It is nearly extinct.
Mono consists of two dialects, Eastern and Western. The name Monachi is commonly used in reference to Western Mono and Owens Valley Paiute in reference to Eastern Mono...... full article at Wikipedia