Established in 1934 on about 40 acres (16 hectares), the Santa Rosa Rancheria belongs to the federally recognized Tachi Yokuts tribe.
On May 28, 2008, then–Tribal Chairman Clarence Atwell Jr. and Dale Morris, Pacific Region Director of the U.S. Bureau of Indian Affairs, signed documents that added 1,163 acres (471 hectares) of trust land, thus enlarging the Rancheria to 1,806 acres (731 hectares).
The division of the native people, the suppression of the Indian culture, and the influence of the greater American society left them with few ties to the past.
Government regulations produced long term economic stagnation on the reservation, resulting in 85% unemployment, a crumbling infrastructure, and a cycle of poverty which ground away at the hope for a better future for their children.
Ruben Barrios the chairman, Elmer Thomas the Vice-Chairman, Rafaella Dieter the Secretary, Dena Baga the Treasurer, Elaine Jeff and Patricia Davis as Delegates.