To get to Borges Ranch from Concord, take Oak Grove east past Northgate Road (the Mt. Diablo State Park acess), which becomes Castle Rock Road. Just past the base of the hill, turn right at the sign and take the one lane road to the ranch.

From downtown Walnut Creek, take Ygnacio Valley Road to Walnut Avenue, turn right onto Walnut Avenue then right onto Oak Grove Road, and south the turnoff sign. Proceed up the one lane road to the park (a hard surface drainage allows cautious passing of vehicles).