Eldridge Grade To East Peak Loop

3.78 out of 5
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Fire Road
elevation (ft)

avg time
Trail Description
About this trail
Basically it's 8 mile climb to the top of Mount Tam and a great downhill back to Ross. The views are great and altough it's all on fire roads it's a pretty cool loop.
Riding by Lake Lagunitas and Lake Bom Tempe is a bonus!
added by Pedro_CarvalhoGramcounter
Trail Features
Trail features
  • Lift Service
  • Drinking Water
  •   Night Riding
  • Pump Track
  • Restrooms
  • Winter Fat Biking
Directions to Trailhead
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Recommended Trails
Recommended Trails
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Local Info & Nearby Trails
Trail Check-ins
Trail Check-ins
what's this?
Recent Trail Check-ins     (16 total check-ins)
  Zbigniew Rozbicki   2 days ago
  ac90002   on Sep 11, 2019
  Ag4R5010   on Feb 10, 2019
  WoodCity   on Aug 18, 2018
  bpogir   on Sep 26, 2017
Photo & Video Gallery (9)
Trail Photos & Videos (9)
Reviews (9)


September 7, 2016
jhart94949 Gnarly  
Review: A little more challenging route to East Peak than old railroad. It has been groomed a lot over the years but still offers a little bit more chuck at the top.

Similar Trail: Old Railroad


November 11, 2013
mc625569 Poseur  
Review: Long uphill climb to top - great views, about 2000 ft climb that starts in covered forest, and ends up with exposed rock gardens. Good for a long session of climbing, but not so steep its unmanageable.

Granny Gear

April 26, 2011
redmiata Granny Gear  
Review: An excellent regular ride. 2100+ feet top to bottom, average around 6% grade. First 1400 vertical feet (up to intersection with Indian Fire Road) is pretty smooth, a few short steeper stretches around 8-10%. Above 1400 feet, the majority of the trail includes long stretches of rock gardens all the way to the top. Several stretches with stellar views. In comparison to the Old RR route on the south side - views aren't as good, a bit more technical, a good bit less traffic. Once comfortable with the rock gardens, you can pull this off in about 2 hours roundtrip from Natalie Coffin Greene park.

Similar Trail: Old Railroad Grade

Granny Gear

August 4, 2010
babcock21 Granny Gear  
Review: Do not start in Ross as the trail is closed for the summer. Go out of Deer Park in Fairfax for the same loop.

Granny Gear

October 10, 2009
jefftse Granny Gear  
Review: Awesome to have a 3000 ft. climb right outside your door here in Marin. Not super technical so it's good for everyone.


January 29, 2008
Review: Rode it yesterday in the rain on my singlespeed rigid bike... tough climb... esp. with no gears. but the descent - w00t !

July 9, 2005
Review: First time rider of trail..went from Ross,Post Office to the top. Great truck to the top as long as you ready for the lung check and the vies are fantastic. As everyone said it is a fun ride down...worth the time and sweat to the top.


June 12, 2005
Juan_Gear Singletrack  
Review: This a classic we should all do once just for the history.


January 12, 2005
Review: Long climb to the top of Mt. Tam and super fast fire road back to Ross. Great views of the bay and SF.

Eldridge Grade To East Peak Loop MTB Trail 3.78 out of 5 based on 9 ratings. 9 user reviews.
Trail Conditions
Trail Conditions          < / > embed