William Rust Summit, also recorded as Willhelm Rust Summit, rises in the Berkeley Hills above El Cerrito in Contra Costa County, California, within the San Francisco Bay Area. It was named for William Rust, who lived from 1857 to 1940 and was remembered as a pioneer settler active in local business and community affairs. The summit’s significance lies less in broad landscape renown than in how its name preserves a link between the hills and the early civic life of the East Bay.