Yurok is an Algic language spoken by about a dozen elderly people in Northern California. It was spoken by the Yurok tribe in Del Norte County and Humboldt County on the far North Coast of California, but most now speak English. Efforts are underway to revive the language however.
The name Yurok comes from the Karuk word yúruk, which means 'downriver'. The Yurok call themselves Puliklah, which means 'downriver people'. Another name for the language is Weitspekan, and it is related to Wiyot.
Information about the Yurok Language
http://en.wikipedia.org/wiki/Yurok_language
http://www.native-languages.org/yurok.htm
Yurok Language Project
http://www.linguistics.berkeley.edu/~yurok/
Yurok Tribe Language Program
http://www.yuroktribe.org/departments/education/Yurok_Tribe_Language_Program/index.htm
Abenaki, Arapaho, Blackfoot, Cheyenne, Cree, Delaware, Massachusett, Miami, Míkmaq, Montagnais, Naskapi, Ojibwe, Potawatomi, Shawnee, Yurok