The Grindstone Indian Rancheria of Wintun-Wailaki Indians is a federally recognized tribe and rancher_a of Wintun and Wailaki Indians from northern California. The tribe's reservation is the Grindstone Rancheria, located in Glenn County, California. It was founded in 1907 and is 120 acres large. Approximately 98 of the tribe's 162 members live on the reservation. The Grindstone Indian Rancheria is governed by a democratically elected tribal council. They are headquartered in Elk Creek, California, and their current tribal chairperson is Ronald Kirk. Traditionally, the members of tribe spoke the Wailaki language or the Wintun, a Wintuan language of the Penutian language family, but the former is extinct and the latter has few speakers.'
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