This public trail easement passes through some great wildflower habitats including serpentine soil that hosts some unusual species. It’s also one of the best places to see some great birds, including grasshopper sparrows, horned larks, and lazuli buntings. Remember to bring binoculars, if you have them. This walk is for ages 15 and up. We request that no pets (except service animals) attend. Rain may cancel. If questionable weather, call (415) 893-9527 after 8am on the morning of the event to hear a recorded message. Meet at the Big Rock trailhead. DIRECTIONS: From Hwy 101 in San Rafael, take the exit for Lucas Valley Rd west approximately 5.5 miles. Look for the big rock and roadside parking.
Bay Nature's events calendar has events from nature organizations all over the Bay Area. Find guided Bay Area hiking, learn about Bay Area wildlife, and more. Learn about our In the Field outings. Or submit your own event.