 They spoke closely related languages, including the living Maidu, Konkow and Nisenan languages, along with the Chico language and other extinct variations.Farrell Cunningham, one of the youngest fluent Yamani Maidu speakers, taught "Mountain Maidu language classes in Greenville, Susanville, Nevada City and Auburn", and was active with the Maidu Theater in Nevada City, until his death on August 11, 2013, at age 37.Active language revitalization efforts have been underway since 2004.