State Route 130 (SR 130) is a state highway that connects U.S. Route 101 in San Jose, California with the Lick Observatory on Mount Hamilton. The segment in San Jose runs along Alum Rock Avenue, while the remainder of SR 130 follows Mount Hamilton Road, a narrow two-lane highway that goes through the Diablo Range in Santa Clara County. Legislatively, SR 130 extends east from Mount Hamilton to Patterson in Stanislaus County, forming a route between the Santa Clara and San Joaquin valleys, but the traversable route via San Antonio Valley Road and Del Puerto Canyon Road is maintained at the county level and has not yet been formally adopted by the California Department of Transportation (Caltrans).