Gold Base is located at the base of the San Jacinto Mountains. The base covers an area of near 19712 Gilman Springs Road, south-east of its intersection with California State Route 79, in unincorporated Riverside County, California, north of San Jacinto and Hemet. It consists of compounds on either side of Gilman Springs Road with underground pedestrian tunnels connecting them. Both parts of the property are surrounded by a chain link fence topped with "Ultra Barrier" spikes and razor wire, with motion sensors and lights. There are five heavily-guarded gates into the base, three on the south side of Gilman Spring Road and two on the north.