Big Rock Ridge to the Summit

This walk will take us from Lucas Valley to the 1,895 ft summit of Big Rock Ridge, the second highest peak in the county after Mount Tamalpais. This walk involves a 1,200 ft elevation gain, but it doesn’t involve any particularly steep sections as it climbs through open grassland, oak woodland, and chaparral. The views along the way are excellent, and the panorama we’ll see from the summit is absolutely breathtaking. The total distance is a bit over 7 miles, so remember to bring extra water and food. This walk is for ages 15 and up. We request that no animals (except service animals) attend. High fire danger may cancel: Call (415) 893-9527 after 7am on the morning of the event to hear a recorded message if cancelled. David Herlocker will lead. Questions: Contact David at (415) 893-9508 or DHerlocker@marincounty.org. Meet at the Big Rock trailhead in San Rafael. DIRECTIONS: From Hwy 101 in San Rafael, take exit 456 for Lucas Valley Rd west approximately 5.5 miles (look for the big rock). The trailhead is on the north side of Lucas Valley Rd.