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San Bruno Mountain Summit Trail

April 13 @ 10:00 am - 2:00 pm

The Summit Trail is a very popular and spectacular 3-mile loop that stretches over the northern portion of the Mountain and is the most species-rich trail. It passes through a logged eucalyptus forest and descends past active seeps until it reaches April Brook. We’ll see horsetails, fringecups, iris, coast rock cress, a club-rush, and at least five ferns. From there we head up to Bitter Cherry Ridge with rocky outcrops covered with fog lichens and views of the ocean and the Colma Canyon dunes. If we have time, we’ll descend to the parking lot through Cable Ravine. Otherwise, we’ll bail out at Battery Road 59 and descend Radio Road. There is a $6 parking fee (cash,credit/debit card) payable at the pay station. Bring a lunch and layers of clothing because, due to the marine influence, you never know what to expect. This field trip will be limited to 15 persons. Heavy rain cancels. Contact Doug at to signup and get meeting instructions.

Participants should sign this waiver.


April 13
10:00 am - 2:00 pm
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Doug Allshouse


Yerba Buena


555 Guadalupe Canyon Parkway
Brisbane, California + Google Map