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Did you know that our state rock is the serpentine rock? Also referred to as "serpentinite" by geologists. This rock is not common to Claremont Canyon but it was found within a mile from this area and photographed by Nancy Mueller.
Our list is full
In June we will be hosting a Geology walk led by Andrew Alden, the creator of oaklandgeology.com. For those who signed up, thank you. On this walk you will have a chance to to learn about the Claremont Chert and other geologic features in Claremont Canyon. Exact details to be determined and emailed to participants several days prior to the event. If you were unable to sign up, you can join our waitlist in case any spots open up. You can send us an email at info@claremontcanyon.org to be added to the waitlist.
Dave Quady (far left) with a group of birders and bird enthusiasts at our spring 2024 Bird Walk | Photo by Nancy Mueller.
Spots have filled up!
Dave Quady, Audubon Christmas Bird Count leader for Claremont Canyon will be leading a bird walk this month. We will look for birds that breed in the Canyon and search for year-round resident birds and Neotropical migrant birds that have returned to breed. If you were unable to sign up and are interested in a future bird walk, contact us at info@claremontcanyon.org to add you to our list.
Cal students joined forces on Berkeley Project Day to remove non-native and invasive French broom plants | Photo by Wyllie Clayson
Thanks to all our volunteers!
We are grateful to the many volunteers who joined us during our Earth Month celebration. We kicked off our events in the upper canyon on Berkeley Project Day with Cal students who helped us remove non-native poison hemlock, thistles, and over 1,000 French broom plants. In Garber Park,volunteers helped remove non-native and overgrown understory vegetation to help make the park more fire safe as we prepare for the drier summer months. On Earth Day, the Claremont Resort and Club hosted a successful volunteer event to help clean the public paths leading to the Evergreen entrance and part of the main steps and trails in Garber Park.
This multi-trunked tree or large shrub is almost in full bloom in Garber Park. Since it's springtime, we are beginning to see creamy-white flower spikes growing within the leaves. Very soon, these spikes will grow abundant flowers for pollinators like native bees and butterflies to enjoy. This is a great addition to your pollinator garden. Just keep in mind that all parts of this plant are toxic. And, if you have an apiary, buckeye won't be a good plant for your yard, as the pollen and nectar is also toxic to non-native European honey bees. If you'd like to learn more about this plant, visit CalscapeandUSDA.
All levels of fitness are welcome! Wear sturdy shoes, dress in layers, and bring your favorite water bottle. Tools and gloves are provided.
Visit this 13-acre park and help restore its native wild habitat (we meet year-round). Meet at the Fireplacebelow the Evergreen Lane entrance (Map). For more informationor questionscontactWyllie.
Join us in the upper canyon as we work to restore and maintain pathways, remove invasive broom, and collect litter. We meet at Signpost 29, 1.5 miles up Claremont from the intersection of Ashby/Tunnel Rd. More information Here. Questions? Contact us at info@claremontcanyon.org.
Help restore native plants and maintain a popular trail! Weed invasive plants, plant seeds, and-if it comes to it-water native seedlings. Located in the small side canyon just north of Claremont Canyon, which is above the Clark Kerr campus. No prior experience needed. Gloves and tools are provided.
Please contact Jim Rosenau or call at (510) 845-0106.
Hiking the Canyon
We would love to hear from our members and others who are out hiking or otherwise observing nature in the canyon. Send us your pictures at info@ClaremontCanyon.org and we will feature one each month.
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An enthusiastic Cal volunteer shows off a massive French broom plant she pulled with a weed wrench during Berkeley Project Day, April 2025 | Photo by Wyllie Clayson.
Trails are open
All trails are open and accessible throughout Claremont Canyon. For maps and complete information on trails click here. You can also take a guided tour here. Please stay safe and take all items and pet waste out with you.