California Code, Streets and Highways Code - SHC § 19008

“Public highway” or “highway” includes any highway, county highway, state highway, public street, avenue, alley, park, parkway, driveway, or public place, in any county, or unincorporated town or village which is dedicated to the public and generally used for traffic by the public or which is privately owned, opened to public traffic, and located within the boundaries of a district created under this part.