Mount Umunhum’s towering summit opens to the public for the first time this fall thanks to you, local voters, who made it possible by passing Measure AA. Beginning Monday, September 18 we welcome you to connect with and experience this special place.

Gain Perspective

Enjoy breathtaking 360-degree views of our region including San Francisco, Monterey Bay, the Pacific Ocean and sometimes even the Sierras from ADA-accessible viewpoints.

Breathtaking views are visible from the summit of Mount Umunhum. Photo by Nate Donovan.

Immerse Yourself in Nature

As the peak is restored its serpentine geology and unique community of plants and animals are revealed. Join our docents for a guided look at Mount Umunhum’s natural history.

Golden eagle nesting on the slopes of Mount Umunhum. Photo by Beth Hamel.

Discover a Rich History

Delve into Mount Umunhum’s fascinating past going back thousands of years through interpretive exhibits. Download the audio tour to hear Air Force veterans, Native Americans and others tell their stories about life on the mountain.

A Mountain of Stories. Left photo courtesy of Hooked on Los Gatos - Library and Museum History Project

Explore New Trails

Bike, hike or horseback ride (sorry, no dogs) up to the summit from Bald Mountain parking area using the 3.7-mile, newly-constructed Mt. Umunhum Trail. Enjoy views, woodlands and the headwaters of Guadalupe Creek.

A new 3.7-mile trail leads to the summit of Mount Umunhum.

Know Before you Go

Get all the information you need to visit at

  • Prepare for all Weather
    Conditions at 3,486 feet can be extreme, even on a pleasant day at lower elevations.
  • Get Directions
    The summit can be reached by Mt. Umunhum Road or Trail. Plan ahead at
  • Bring Water and Snacks
    None are available at the summit.
  • Leave the Dog Home
    And thanks for packing out what you pack in.

Help create Mount Umunhum’s next chapter as one of the Bay Area’s great publicly accessible peaks by sharing your stories and adventures atop Mount Umunhum on Twitter, Facebook or Instagram using #Mountumunhum and @mrosd.