About us
Enjoy a variety of outings and events offered by the ex-leaders, as well as current certified leaders, from SF Bay Area Sierra Club Chapters.
Leaders: 3 questions to participants:
- Is there any medical reason known to you that indicates you can't do this hike?
- Do you suffer from diabetes or anaphylaxis or allergies?
- What was the last time you did a hike of 10 miles or more?
### Alt-Sierra Club Mission Statement
To explore, enjoy, and protect the wild places of the earth;
To practice and promote the responsible use of the earth's ecosystems and resources;
To educate and enlist humanity to protect and restore the quality of the natural and human environment and to use all lawful means to carry out these objectives.
We encourage our members to join the Sierra Club and support the Loma Prieta Chapter,
which is responsible for local outings, conservation, environmental education,
leadership development and political activism.
See "Who We Are" on our website: http://www.sierraclub.org/loma-prieta
Upcoming events
5

Mt Umunhum Hike
Mount Umunhum Summit Parking Area, Mt. Umunhum Road, San Jose, CA, US***This is NOT a Sierra Club sponsored hike***
Sierra Club does not assume any liability for this event.
Participants will be required to sign a liability waiver at the trailhead to release the leader for any liability for mishaps that may occur during the course of this event.Level: Moderate (2C) 8.5 miles 2425 feet elevation gain
Leader: Kimberly Sandstrom OutingsBMHS@gmail.com
Meet: Sierra Azul Parking Lot At Mount Umunhum Summit Area (GPS: 37.16014581579278, -121.9005836880418). Vault toilets are available at the parking area. There is no potable water available anywhere on Mt Umunhum.
Description: Amah Mutsun people have lived on the land now called Sierra Azul Preserve for at least a millenium and their creation story centers on Mt Umunhum. At 3,486 feet, Mt Umunhum tops Midpeninsula Regional Open Space Preserve’s largest preserve, Sierra Azul which protects more than 19,000 acres of wilderness. From 1957 to 1980 the summit was the site of the Almaden Air Force Station, with a rotating radar array perched on the huge concrete building that is prominent on the summit. When Midpen acquired the land, they worked hard to restore it, raising the summit 15 feet as they recovered land that had been scraped and pushed over the edge. Midpen gathered native plant seeds within Sierra Azul and replanted the summit. In 2019, the Santa Cruz Kangaroo Rat was discovered, which had been reported in the past, but not seen for 75 years.
We will meet at the top parking lot and then carpool down to the Jacques Ridge parking lot, and hike Woods Trail to Barlow Road to Mt Umunhum Trail. Wildflowers should still be around for our enjoyment. The hike will proceed one way, from bottom to top and after taking in the 360 degree view, we will enjoy refreshments at the covered picnic tables near the summit parking lot. We will then carpool back down the hill to the lower parking lot, and the remaining cars.
We will hike at a moderate pace with a few stops to enjoy the surroundings. There are no trash receptacles, so plan to practice "leave no trace" and carry out everything you carry in.
Note that carpool transportation is at the sole risk of the participants. Poison oak, ticks and rattlesnakes all live in this preserve, so be aware of and avoid them.
Wear/bring: sturdy hiking boots/shoes, 2 L water, layered clothing, snacks, lunch, sun protection, basic first aid kit, hiking poles (optional).
Restrictions: Dogs are forbidden on Mt Umunhum.
Cancellation Policy: steady or significant rain, other adverse weather conditions
7 attendees
Past events
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