Onasatis

The Onasatis, also known as the Wappo, inhabited the Napa and Russian River valleys and the southern shore of Clear Lake. Their language was distantly related to that of the Yuki and influenced by their Pomo neighbors. Wappo villages stood in the Napa Valley when Mexican colonists arrived, while people from the southern shore of Clear Lake were taken to the Spanish missions. The Wappo resisted Mexican domination and fought forces under General Vallejo and his allies; in 1836 the opposing parties made peace.