The Mattole, including the Bear River Indians, are a group of Native Americans traditionally living on the Mattole and Bear rivers in the vicinity of Cape Mendocino, within the present Humboldt County, California. The Mattole spoke an Athapaskan language that may have been closely related to that of their Eel River neighbours to the east. Aboriginal Bear River villages included Tcalko', Chilsheck, Chilenche, Selsche'ech, Tlanko, Estakana, and Sehtla.-------------------The Mattole federal reservation, the Rohnerville Rancheria, located south of Eureka, reported a population of 29 in the 2000 census.-------------Mattole is one of the 562 Indian Tribal Entities within the contiguous 48 States recognised and eligible to receive services from the United States Bureau of Indian Affairs included in the latest list issued by the Bureau of Indian Affairs, Department of Interior of the United States on April 4, 2008.