"Friends of Tamarancho" Mountain-Biking

ALL Tamarancho Trails are currently OPEN!

(EFFECTIVE Monday 05/06, get out and ride the best legal singletrack in Marin!)

Please Remember after each storm:  "When it Rains, Let it Drain!"


Buy your 2024 Day Pass Here!

Download a TRAILS MAP Here!

The Marin Council, BSA operates Camp Tamarancho high in the hills above the town of Fairfax.  In partnership with the Friends of Tamarancho local volunteer group and the Access4Bikes Foundation, we provide many miles of challenging and well-maintained mountain-biking trails around camp property, in addition to public access along the Marin County Open Space Preserve.

Read our Trail News for Spring 2024!

New Trail Passes

2024 ANNUAL Membership

Individual Pass = $50

Family Pass = $75

2024/25 GOLD Membership

Individual GOLD Pass = $95

Family GOLD Pass = $125

ONE-DAY Trails Pass

Individual = $6

Your "Friends of Tamarancho" membership donation is tax deductible.

If you have questions or concerns about the trails, please email or call (415-454-1081) the Marin Council Service Center.

There are many ways to enjoy this program.  By clicking one of the links below, you can pay for your pass online OR you can download the application to mail in to the Marin Council office:

Details are in the current Friends of Tamarancho trail pass application.  Please download the form, read it, sign and fax or mail, and retain a copy.  Your submission of payment online with your credit card indicates your acceptance of the FoT terms & conditions therein.  The Tamarancho Trail rules apply at all times while you are on the private camp property.
  • Pass must be visible while riding
  • Don't ride in the rain or when trails are wet
  • Always ride in control
  • No dogs allowed at any time
Also print and review this Tamarancho Trails map of the loop and open space preserve access, and note the parking information!

Vehicle traffic or parking is NOT permitted at any time along Iron Springs Road.

When you sign up, you will receive email newsletters a couple times a year with updates about Tamarancho as well as other trail news around greater Marin.

Please Note:

The use of Tamarancho Trails is limited to current passholders ONLY.

All trails are closed when raining and wet, or while muddy and slippery on days following seasonal storms.

Possession of a Tamarancho membership pass does not entitle the bearer to drive or park anywhere on Iron Springs Road.  Parking is allowed in legal spaces in Fairfax, and cyclists must ride to the trailhead kiosk on Iron Springs Road.

Thank you for ensuring proper stewardship of these trails by adhering to these rules for the benefit of all riders.

We wish you a safe and enjoyable riding experience on the scenic trails loop at Camp Tamarancho!

Wildlife Awareness &

Mountain-Biker Safety

at Camp Tamarancho:

click on these links for more info . . .

Poison Oak            Ticks

Yellow-jacket Wasps            Rattlesnakes

Bobcats            Mountain Lions


Learn more about the history of this world-class single track network and how it was built by local volunteers in the 1990's!


(c) 2024 Marin Council, BSA
225 West End Avenue
San Rafael, CA 94901
Phone:  415-454-1081
Fax:  415-454-5511