"Friends of Tamarancho" Mountain-Biking

Discounted Annual Trail Passes available 07/15 to 11/30/2022!

In the interest of our community Public Health to combat the spread of CoronaVirus when using all Camp Tamarancho trails, PLEASE ADHERE TO THE FOLLOWING:

  • You must ride the main trails loop in a clockwise direction only;
  • Follow proper social-distancing measures during this aerobic activity;
  • Always ride in control of your bike and be safe on the narrow trails.


Download a Trails Loop 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, we provide many miles of challenging and well-maintained mountain-biking trails around camp property, in addition to public access to the Marin County Open Space Preserve.

Read our Trail News for Winter 2022!

New Trail Passes
are now available at discount prices!


2022 Annual Membership


2022-2023 GOLD



See info






2022 Annual Membership

Individual Pass = $50 $30

Family Pass = $75 $50

2022-2023 GOLD Membership

Individual GOLD Pass = $95 $55

Family GOLD Pass = $125 $95

One-Day Trails Pass

Individual = $6

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


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 (see links to discounts below):

Details are in the current FoT 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 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!

No parking is permitted anywhere on Iron Springs Road at any time.

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

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.


Start on IRON Springs and your ride is GOLD!


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


(c) 2022 Marin Council, BSA
225 West End Avenue
San Rafael, CA 94901
Phone:  415-454-1081
Fax:  415-454-5511