This park features rugged cliffs, secluded sandy beaches, coastal plains, streams, canyons, and hills, including 1,347-foot Valencia Peak. Naturalists and backpackers enjoy the solitude and freedom found along the park's trails. There are also mountain biking and equestrian trails. 

The best-known beach is Spooner's Cove, across from the Islay Creek Campground. The park's name, "Mountain of Gold," comes from the golden wildflowers that bloom in spring. Wildlife in the park includes black tailed deer, bobcats, mountain lions and seabirds such as the black oystercatcher. The park includes primitive and equestrian campsites. Dogs are only permitted in the paved campground areas and on Spooner's Cove beach.