This 3.9-mile trail extends from the Bald Mountain parking area to the Summit, crossing through the varied habitats of the mountain and offering incredible views of the valley below, the ridgelines above, and the other great peaks of the Bay Area. The multi-use trail offers moderate terrain for hikers, bicyclists, and horseback riders; and, at the summit, is the highest point on the Bay Area Ridge Trail. Trail usage from the Trailhead Shelter located 3.5 miles up the Mount Umunhum Trail near the parking lot to the summit and all summit pathways is limited to hikers only. 

At the top of Mount Umunhum, visitors can enjoy the 0.3-mile accessible pathway to the west summit that leads to the ceremonial circle, east summit view point, summit shelter, and interpretive displays.