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Lake Lagunitas / Colier Springs - 12 miles (Strenuous)

DESCRIPTION: Colier Springs trail is the first and the hardest part of the hike because it is a steep sustain climb (1.5 miles ... feels like 3 miles).  Otherwise we have a nice up and down 12 mile hike.

Here are the trails for this expedition:

Lagunitas parking (start) (Water) > Colier Springs > International > Northside > Azalea Meadows > High Marsh > Cataract > Helen Market >  Kent/Alpine > Bon Tempe Dam > Bon Tempe Shadyside > Lagunitus Lake (end)

Here is a map of some of the trails we will be traveling on:

Here is GPS Track of the route:

Duration: 6.5 hours

Distance: 12 miles

Elevation gain: 2,300 ft.

Lunch Break: past the 1/2 point.

Facilities and Water: at the trailhead

Dogs?: No

Dress in layers.  It MAY be cold to start. It MAY be hot! It MAY be windy!


Take Highway 101 to the Central San Rafael exit. Turn left on Third Street. Stay on Third. It will turn into Sir Francis Drake Blvd.Stay on Sir Francis Drake until you get to the Fairfax town limits. Turn left immediately after the gas station at Pacheco Avenue then turn right immediately on Broadway.  In one block, turn left on Bolinas Rd.  Drive 1.5 miles on Bolinas Rd to Sky Oaks Rd, where you bear left.  Drive straight for .4 miles to the ranger station and entrance Kiosk (where a one-day parking pass must be obtained), then continue .6 mile to Lake Langunitas parking lot. We will meet in the parking lot


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 or fire danger issues.  Cancellations due to weather will be posted by 10 pm the previous evening.

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

Bring your smile and great attitude!  We are ALL about trail enjoyment while respecting everyone’s time!

CAR POOL INFORMATION: Car pool locations:

SANTA ROSA: Coddingtown Mall parking lot in front of the Coddingtown library to leave by 7:20 am:

PETALUMA-Lucky at the intersection of Lakeville and Caulfield Ln. Park closest to Payran St. suggested leave by 7:40 am

 See you on the trail!

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  • veronica

    Thank you for the great hike and workout! Grateful for the chance to test my limits ;) Would definitely do it again :D

    August 31, 2014

  • Brenda P.

    Best new hike I have done all year! I loved it! Thank you Yannick and Greg.

    August 31, 2014

  • Don

    Very good workout for me. Thanks for patiently waiting on the steep hike up Collier Springs trail. Slow but sure! Enjoyed the company and scenery. Thank you Yannick for posting.

    2 · August 31, 2014

  • Yannick

    I believe part of hiking includes testing one's limits once in a while. For some, this hike delivered that test and the positive Wanderer spirit never left. Greg, thank you for suggesting and helping me lead the hike. I had a great day!

    1 · August 31, 2014

  • Jonelle F.

    Excellent day!!

    August 30, 2014

  • Weiwen Y.

    This hike (12miles) is new record for me. Yannick was very patient with those of us at the back. Thank you!

    August 30, 2014

  • Max

    Beautiful Hike with a great group. Thanks Yannick and Greg for leading !

    August 30, 2014

  • Margaret

    A challenging hike, but a beautiful one. Thanks to Yannick for organizing, and of course to all the great companions.

    August 30, 2014

  • Margaret

    A challenging hike, but a beautiful one. Thanks to Yannick for organizing, and of course to all the great companions.

    August 30, 2014

  • lynn_r

    A gorgeous hike. Yannick was very patient with those of us at the back. I would do this hike again.

    August 30, 2014

  • Brenda P.

    Petaluma carpool for me.

    August 28, 2014

    • veronica

      Looks like its just you and me in RP. Do you still want to meet at the Park & Ride or should we drive to Petaluma?

      August 29, 2014

    • Gloria C.

      I'm getting a ride with Melanie. See you at the trailhead!

      August 30, 2014

  • Christopher

    Sorry Yannick, Mary Ann and I have an unexpected change in our plans. Enjoy your day!

    August 29, 2014

  • Michelle K.

    So sorry but won't be able to join you guys after all.

    August 29, 2014

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