Trail: ALPINE DAM — Fairfax to Mt. Tam, Hot Damn!


You’ve followed the Coffee Run and ended up in Fairfax, but aren’t ready to head home, what do you do? If you are up for a challenge, it’s time to head west! This route takes you toward Bolinas, up the Seven Sisters and drops you 2.9 miles from the summit of Mt. Tamalpais. If you still have the energy after conquering this much climbing, the route to the summit is detailed in Welcome to the Top of the World. Once you reach the summit with this route, you’ll be on your way to 5000 feet of climbing from the Ferry Building and just over a mile of climbing if you are brave enough and have the energy to make it back to the Ferry Building.
-Distance from San Francisco Ferry Building (see Golden Gateway Trail): 46.46 miles; Distance from Marin Crossroads: 33..05 miles; Distance from Sausalito: 37.07 miles; Distance from Coffee Run: 14.26 miles
-Climbing on Route: 2,329 feet (710 meters)
-Distance/Climbing remaining to Mt. Tamalias Summit: 2.9 mile/630 feet (192 meters)
-Difficulty: This is the more difficult way to ascend to the top of Mt. Tam with an initial climb 3.5 miles long that is just the beginning of a tough ride that will challenge any experienced cyclist.
-FOR A MORE DETAILED LOOK click here for the full route provided by MapMyRide.com.
-Elevation Map for the Route provided by MapMyRide.com
At the end of The Coffee Run you are left with a question, “Am I feeling up for climbing?”
From the Fairfax Coffee Roastery, make a left onto Bolinas Road.
At the stop sign with Cascade Drive and Frustuck Avenue, follow Bolinas Road toward the left and towards Mt. Tam and Alpine Dam.
Continue following Bolinas Road as it starts to climb just past Deer Park Villa.
The initial climb is quite steep at the beginning approaching grades of 8% and continues for 3.5 miles with an average grade of 4.5%.
Once you reach the Meadow Club Golf Course you then enter the Mt. Tam Watershed district and are only 0.75 miles from the top of the first climb.  The traffic along the road at this point starts to dissipate.
The top of the climb is a parking lot, but just beyond the views of the valley below and Alpine Lake are beautiful.
Follow the road as it descends around hairpin turns and then undulates all the way to Alpine Dam.
Alpine Damn is your last flat road until you return back to the Marin Crossroads.  This is the place to stretch and refill your water bottles before the next climb.
The next climb begins on just the other side of the dam. This second climb is 2.75 miles long and by far the hardest on your way to the summit of Mt. Tam.  It has an average grade of 5.7%, but hovers between 7-8% for most of the climb up to West Ridgecrest Road.
Don’t burn yourself out on this climb, because there is still another two mile climb once you reach the top. Take your time and take in the views.
Once you reach the top, take a left onto West Ridgecrest Road.
This is another good place to stop and stretch as the next climb, the climb up The Seven Sisters (aka The Seven Bitches), starts right away.
The climb up The Seven Sisters is not your normal climb. It is a 2 mile long series of upward undulations with an average grade of 3.4%.  There are sections with grades between 5 & 6% towards the last set of undulations.
Your legs will beg for relief as you make your way up this series climbs, but the views can’t be beat as you will overlook Bolians Lagoon and Stinson Beach below.
Just before the last climb, there is a great place to take a brake, take in the views and maybe even see some hang gliders as they glide over the ocean.
After a quick break to take in the views, you have one last climb until you reach the intersection of West Ridgecrest Road, East Ridgecrest Road and Pan Toll Road.
Once you reach Rock Springs point you’ve climbed over 2,300 feet from Fairfax alone, if you came from San Francisco you are at over 3,000 feet. Now its up to you to determine whether you have the legs to keep climbing up to the summit of Mt. Tam, or if you want to take a break from climbing and head back to Sausalito where you will meet up with the route from the Three Amigos at the intersection with CA-1.
If you decide to finish off the last 2.9 miles of climbing and summit Mt. Tam, follow East Ridgecrest Road to The Top of the World for the last 630 feet.  This is a challenge after such a tough climb, but the views are well worth it!
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