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Big Rock Ridge, Dogs on leash invited! , 7.5 miles, 1400-1600' elevation gain

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  • Big Rock Trail is a relatively new segment of the Bay Area Ridge Trail, opened in 2003.

    The summit of Big Rock Ridge at 1895 feet is the second highest point in Marin County (after Mount Tamalpais), and views from the top are spectacular.

    This hike will be an out and back; we'll hike up and down the same trail. We'll climb to high points where Marin County's mountains and valleys are laid out before us and San Francisco and the Golden Gate Bridge loom in the south. The trail starts gently upward through a grassy hillside then into stands of oak. Once through a fence we'll encounter a mix of grassy hillside and oak stands but on a much more severe incline. A series of switchbacks will carry us ever higher and eventually to the fire road on the ridge.

    Much of this hike is exposed with little tree cover, so wear sunscreen and/or a hat.


    Petaluma Carpool: Lucky parking lot at the corner of Lakeville Highway and Caulfield Lane. This is the shopping center at the corner of Lakeville Highway and Caulfield Lane, just a stop light or two east of the Lakeville Park and Ride.  We meet at the side of the parking lot farthest from Lakeville Highway (alongside Payran Street).   Be there early enough to divide up into cars andleave promptly at 8:15am

    Coddingtown by the library to leave by 8.

    Directions to the trail head: From Hwy 101 in San Rafael, take the Lucas Valley Rd/Smith Ranch Rd exit west on Lucas Valley Rd. Continue on to the “Big Rock” on the right side of the road and park.

    Always check the meetup website the night before just in case there are some car pooling opportunities have come up or any last minute instructions due to WEATHER..

    As always:

    - We combine enjoyment of the trail with respect for everyone’s time. Slow and steady and we just keep going!

    - Give yourself time to find the trail head so that you arrive prior to the scheduled time. That is the time we head out on the trail. It would be disappointing to miss having you on the hike due to late arrival.

    - Wear comfortable hiking shoes that are well broken in.

    - Bring plenty of water. More than one bottle is usually a good idea.

    - Dress in layers; the top may be cold, so bring something warm.

    - Bring a snack for our break at the top.

    - Please always check your email the night before just in case there are any necessary adjustments. This is especially important if there are any weather issues. Cancellations/changes due to weather will be posted by 10pm the previous evening.

    - Bring your smile and great attitude! Once again....this is not about finishing the hike in record's about enjoying ourselves and the outdoors!

    - Try to car pool if you can. Car poolers, please chip in for gas and the use of the driver's car, at least $5.00.

    - No facilities at the trail head or on the trail.

    - No dogs.

    See you on the trail!

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11 going

9 spots available

  • Julie W.
    EXALTED Jewel,
    Event Host

    Looking forward to meeting new people and hiking the beautiful trails!!

  • Sheri F.

    Moved from San Diego late June and wanting to connect with the outdoors and others

  • Pat B.
    Exalted LADY AVON!

    Not all who wander are lost!

  • Brigitte D.

    I love being outdoors, wandering about with like-minded souls and having fun.

  • napastan
    The Pole Man. HIGH EXALTED!


  • Barbara T.

    Hi--I'm Barbara, and I love to hike

  • Kim

2 not going

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