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Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
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        The best singletrack area in Marin.

        This is private land and you must have a pass The link to buy a pass is below.

        And the best rule of all - STAY ON THE SINGLETRACK. You should NOT ride the fire roads into the Boy Scout camp.
        Primary Trail Type: Cross-Country
        AKA: Camp Tamarancho
        Land Status: Private Property
        Land Manager: Boy Scouts of America
        Parking google parking directions
        Links
        Activities Click to view
        Region Details
        • 1
        • 9

        Region Status
        Open as of Apr 15, 2026
        Local Trail Association

        Stats

        Avg Trail Rating
        Trails (view details)
        9
        Trails Mountain Bike
        13
        Trails E-Bike
        13
        Trails Hike
        11
        Trails Trail Running
        11
        Total Distance
        8 miles
        Total Descent
        2,174 ft
        Total Vertical
        780 ft
        Highest Trailhead
        987 ft
        Reports
        1,267
        Photos
        88
        Ridden Counter
        53,715

        Popular Tamarancho Mountain Biking Trails

        95 4.2 4,548 ft 259 ft 3,277
        A Fun fast flowy trail that is made from classic redwood dirt. Trail named after the b17 crash on whites hill during the cold war.
        95 4.3 3,097 ft 0 ft 3,165
        Pump Track/Flow Trail w/ small skills area. A couple of jumps and doubles, none are mandatory. There is a small 1 foot drop next to the skills area that is unavoidable, but is rollable with a little bit of speed. If you have really wide...
        100 4.3 3,099 ft 285 ft 3,083
        Highly rated popular blue difficulty singletrack. This mountain bike primary trail can be used both directions and has a moderate overall physical rating with a 285 ft blue climb. On average it takes 9 minutes to complete this trail.
        95 4.0 2 miles 277 ft 3,028
        The longest section on the Tamarancho loop, is mostly blue-green difficulty, although there are a few sections with really dangerous roots that can cause a crash, so try to walk them. They are especially washed as of February 2021. The...
        100 4.2 1,365 ft 0 ft 3,017
        Highly rated popular blue difficulty singletrack. This mountain bike primary trail can be used both directions. On average it takes 6 minutes to complete this trail.
        95 4.3 4,360 ft 288 ft 2,954
        Serpentine trail is probably the most difficult climb on the Tamarancho loop, especially on a hot day. It starts out in the open, and descends through some meadows. There is a small rock drop marked with a double black sign, although it...
        90 4.6 1 mile 159 ft 2,904
        A trail that lives up to its name. Trail is the fastest on wagon wheel 29 bikes but is enjoyable on all bikes. Whole trail is practically on some form of rock from crushed granite to big rock gardens. In the middle is a nice man made...
        85 3.9 1 mile 188 ft 1,891
        This is the first trail most people run into after climbing up Alchemist. This is assuming you came into the camp via Iron Springs Road. It is a trail with equal ups and downs not a lot of climbing but not a lot of descending. Nothing...

        Recent Ride Log Activity in Region

        Today
        • 11 rides
        Yesterday
        • 14 rides
        Past Week
        • 75 rides

        Tamarancho Mountain Bike Routes

        5.0 14 miles 2,406 ft 7
        Tamarancho Ride from Fairfax. Maiden Voyage
        3.5 7 miles 1,254 ft 10 Loop
        Great loop around Tamarancho Trail system!
        8 miles 1,532 ft 9 Loop
        Hit all the goods at Tamarancho and hit them a couple times. This hits the main loop as well as the and .
        3.0 10 miles 1,748 ft 11
        To tam loop via alchimist
        3.0 18 miles 2,522 ft 13 Loop
        Park in subdivision outside of White Hill High School and ride to Tamarancho loop and back out. Some tough...
        11 miles 2,449 ft 4 Loop
        All trails are unpaved fire roads except for short section of asphalt (Sir Francis Drake Blvd) connecting...

        Photos of Tamarancho Mountain Bike

        40 |
        Dec 30, 2025 @ 8:09am
        Dec 30, 2025
        49 |
        Dec 30, 2025 @ 8:08am
        Dec 30, 2025
        47 |
        Dec 29, 2025 @ 3:35pm
        Dec 29, 2025
        91 |
        Dec 16, 2025 @ 9:32pm
        Dec 16, 2025
        101 |
        Dec 16, 2025 @ 9:32pm
        Dec 16, 2025
        126 |
        Dec 16, 2025 @ 9:32pm
        Dec 16, 2025
        1,240 |
        Feb 14, 2018 @ 11:22pm
        Feb 14, 2018
        1,273 |
        Jun 23, 2015 @ 10:36pm
        Jun 23, 2015
        1,105 |
        Feb 16, 2015 @ 9:09pm
        Feb 16, 2015
        999 |
        Feb 16, 2015 @ 9:07pm
        Feb 16, 2015
        2,225 |
        Feb 6, 2015 @ 9:41am
        Feb 6, 2015
        | 5 comments
        1,425 |
        Feb 6, 2015 @ 9:39am
        Feb 6, 2015

        Videos of Tamarancho Mountain Bike

        The Rock
        0:14 | 107 | Nov 18, 2021
        Good time at Camp Tamarancho
        0:08 | 356 | Feb 12, 2018
        Fun Day with my Lil Man
        0:00 | 71 | Jul 11, 2017
        FIND YOUR FLOW
        0:54 | 944 | Feb 15, 2016
        Mini Bike ep. 2 The Dark Night Rides
        2:29 | 145 | Sep 14, 2015
        Tamarancho 2015 Chainless DH Race
        3:32 | 835 | Jun 10, 2015
        Camp Tamarancho, B-17
        2:17 | 311 | Feb 20, 2015
        Endor Flowtrail Virgins
        0:32 | 422 | Nov 10, 2014

        Recent Trail Reports

        Activity Feed

        usernameactiontypetitledate
        jamobado1wishlistrouteactivity #97278851
        Jun 18, 2026 @ 3:21pm
        Jun 18, 2026
        rowdyrulezwishlisttrailactivity #97261802
        Jun 18, 2026 @ 10:33am
        Jun 18, 2026
        JordanZIy1FQwishlisttrailactivity #97041023
        Jun 15, 2026 @ 7:50am
        Jun 15, 2026
        Alexandermasters43wishlisttrailactivity #96834589
        Jun 12, 2026 @ 4:22pm
        Jun 12, 2026
        AlecPMqAYTwishlistrouteactivity #96820498
        Jun 12, 2026 @ 12:09pm
        Jun 12, 2026

        Recent Comments

        usernametypetitlecommentdate
        Isaacg77trailCaballo RojoGreat trail to practice cornering on! Less...
        Apr 11, 2026 @ 9:37am
        Apr 11, 2026
        bkxctrailCaballo RojoWorth doing once. Top section was supremely...
        Mar 1, 2026 @ 10:29am
        Mar 1, 2026
        GPzMiketrailSaddlecut TrailAt the saddle, go right and up the fire road...
        Jan 30, 2026 @ 8:08am
        Jan 30, 2026
        logan24trailCaballo RojoFun trail! Kind of a toned-down version of the...
        Jan 19, 2026 @ 10:10pm
        Jan 19, 2026
        scubasteve123412trailEndor (Flow Trail)Fun flow trail. The only downside is that its...
        Aug 19, 2025 @ 5:40pm
        Aug 19, 2025

        Nearby Areas

        namedistance
        White Hill Preserve 40.6 km
        Cascade Canyon Preserve 1 10.7 km
        Loma Alta Preserve 3 11.4 km
        Bald Hill 12.1 km
        San Domenico 1 2 12.2 km

        Local Badges


        Activity Type Stats

        activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
        Mountain Bike128 miles2,175 ft4 miles781 ft
        #600#216931,2671249,852
        E-Bike138 miles2,175 ft4 miles781 ft
        #2,921#9101,20925,978
        Hike118 miles1,926 ft3 miles781 ft
        #1,216#5941,16721,351
        Trail Running118 miles1,926 ft3 miles781 ft
        #8,446#2,9631,16721,343

        Frequently Asked Questions About Tamarancho

        What are the highest rated mountain biking trails in Tamarancho?
        The highest rated mountain biking trails in Tamarancho are: View all mountain biking trails sorted by rating.
        What is the best time of the year to ride in Tamarancho?
        Based on ride log data, the most popular months to ride in Tamarancho are:
        • July (302 activities)
        • October (259 activities)
        • November (259 activities)
        Check the Tamarancho reports page for current trail conditions, recent trail reports, and seasonal information from the local community.
        Where can I park to ride in Tamarancho?
        There are 1 parking locations listed in Tamarancho. The most popular parking spots are:
        What is the longest trail in Tamarancho?
        The longest trail in Tamarancho is Broken Dam Trail at 1.9 miles. View all trails sorted by distance.
        • By brenthillierTF Pro NSMBA TRAILFORKS & contributors
        • Admins: A4B, A4B
        • #6111 - 39,074 views

        Downloading of trail gps tracks in kml & gpx formats is enabled for Tamarancho.
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