of European colonization were the leading cause of population decline and mass death for Native Americans. Intermarriage among neighboring tribes after their forced relocation to the Round Valley Reservation resulted in large numbers of Native Americans with mixed ancestry. Many of these people are descendants of many local tribes and have come to be called Round Valley Indian Tribes. In the 2010 census, 569 people claimed Yuki ancestry. Two hundred fifty-five of them were full-blooded. Ethnobotany They use the large roots of Carex to make baskets. See also Yuki traditional narratives References Sources Cook, Sherburne F. 1956. "The Aboriginal Population of the North Coast of California", Anthropological Records, 16:81-130. University of California, Berkeley. Cook, Sherburne F. 1976. The Conflict between the California Indian and White Civilization. University of California Press, Berkeley. Harrison, K. David 2007. When Languages Die. New York: Oxford University Press. Kroeber, A. L. 1925. Handbook of the Indians of California. Bureau of American Ethnology Bulletin No. 78. Washington, D.C. External links Round Valley history , Four Directions Institute Native American tribes in California Native American tribes in Mendocino County, California