Mount Umunhum Summit and Back
ElevationAscent: 1,195' 364 m
Descent: -1,195' -364 m
High: 3,474' 1,059 m
Low: 2,317' 706 m
GradeAvg Grade: 5% (3°)
Max Grade: 44% (24°)
Current trail conditions
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“Combine nature, amazing scenery, and interesting history while running to one of the highest peaks in the Santa Cruz Mts.”— Shlomo Waser
The Bald Mountain parking has limited parking, which is another reason to start early.
Download a free audio guide describing the natural environment, the scenery, and the rich history of the area on the Sierra Azul website.
It climbs steadily (1,200 ft) for 3.7 miles to the summit of Mount Umunhum, one of the highest peaks in the Santa Cruz Mountains. The trail is excellent and easy to follow, making its way up lots of switchbacks to ease the climb.
The trail goes through a variety of trees such as oak, madrone, manzanita etc. The views from the summit are great: Silicon Valley lies below you, and (on a clear day) one can see all the way to San Francisco, Monterey Bay, and the Pacific Ocean. There are great views of all the mountains in the area, including Mount Hamilton and Mount Diablo. There are a few interpretive signs along the trail and many more on the summit area.
The mountain's name means Hummingbird in the Ohlone language.
Land Manager: Mid-Peninsula Regional Open Space District