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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
Trail Ridden Direction
Trailforks scans users ridelogs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
  • < 50%
Trail Last Ridden
Trailforks scans ridelogs to determine the last time a trail was ridden.
  • < 2 days
  • < 1 week
  • < 2 weeks
  • < 1 month
  • < 6 months
  • > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
  • Downhill Only
  • Downhill Primary
  • Both Directions
  • Uphill Primary
  • Uphill Only
  • One Direction
ContributeDetails
Colors indicate trail is missing specified detail.
  • Description
  • Photos
  • Description & Photos
  • Videos
Trail Popularity ?
Trailforks scans ridelogs to determine which trails are ridden the most in the last 9 months. Trails are compared with nearby trails in the same city region with a possible 25 colour shades. Think of this as a heatmap, more rides = more kinetic energy = warmer colors.
  • most popular
  • popular
  • less popular
  • not popular

LEGEND
Trail Difficulties
  • Access Road/Trail
  • White
  • Green
  • Blue
  • Black
  • Double Black Diamond

Trail Report Status
  • Clear / Green
  • Minor Issue / Yellow
  • Significant Issue / Amber
  • Closed

  • Land Owner Overlay
  • Wilderness (typically no bikes in USA)
  • BLM (public)
  • USFS (Wildlife sanctuaries darker than usfs)
  • State land
  • Indigenous
  • Military
Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
  • Map Markers
  • trail Trail Head
  • photo Photo
  • place Directory Listing
  • region Riding Area
  • TTF TTF
  • Parking Parking
  • Viewpoint Viewpoint
  • Information Information
  • Warning Warning
  • Directions Directions
  • Sight Sight
  • Restrooms Restrooms
  • eBike Charging Point eBike Charging Point
  • Water Fountain/Source Water Fountain/Source
  • Gate Gate
  • Trail Sign Trail Sign
  • Table or Bench Table or Bench
  • Ladder Ladder
  • Stairs Stairs
  • Bridge Bridge
  • Camping Camping
  • Cabin Cabin
  • Lodge Lodge
  • Bear Cache Bear Cache
  • Dock Dock
  • Ranger Station Ranger Station
  • Summit Summit
  • Other Other
      No description for Mt Tam / Marin Headlands has been added yet! Login or register to submit one.
      Region Details
      • 3
      • 9
      • 18
      • 5

      Region Status
      Caution as of 2 days ago

      Stats

      Avg Trail Rating
      Global Ranking
      #1,816
      State Ranking
      #84
      Trails (view details)
      35
      Trails Mountain Bike
      37
      Trails E-Bike
      1
      Trails Hike
      37
      Trails Trail Running
      37
      Trails Horse
      2
      Total Distance
      43 miles
      Total Descent
      17,376 ft
      Total Vertical
      2,030 ft
      Highest Trailhead
      2,050 ft
      Reports
      72
      Photos
      43
      Ridden Counter
      1,814

      Recent Ridelog Activity in Region

      Today
      • 0 rides
      • 0 ft avg distance
      Yesterday
      • 6 rides
      • 19 miles avg distance
      Past Week
      • 44 rides
      • 17 miles avg distance

      Photos of Mt Tam / Marin Headlands Mountain Bike

      15 |
      Aug 18, 2019 @ 4:06pm
      Aug 18, 2019
      trail: Dias Ridge
      13 |
      Aug 14, 2019 @ 8:55pm
      Aug 14, 2019
      12 |
      Jul 18, 2019 @ 7:58pm
      Jul 18, 2019
      7 |
      Jul 18, 2019 @ 7:58pm
      Jul 18, 2019

      Videos of Mt Tam / Marin Headlands Mountain Bike

      Tam
      trail: Tenderfoot
      0:06 | 136 | Aug 9, 2017
      Tenderfoot with the new gopro hero4 session
      trail: Tenderfoot
      4:36 | 424 | Jul 13, 2015
      Skids...Repack Coaster Brake Test
      trail: Miwok Road
      5:27 | 1712 | Nov 11, 2014
      Self Edit Miwok
      trail: Miwok Road
      0:23 | 188 | May 10, 2014

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #794672acyclistvotetrailMiwok Trail
      Oct 14, 2019 @ 11:00pm
      2 days
      user #794672acyclistcommenttrailMiwok Trail
      Oct 14, 2019 @ 10:59pm
      2 days
      user #794672acyclistaddreportMiwok Trail and 1 more
      Oct 14, 2019 @ 10:58pm
      2 days
      user #794672acyclistriddentrailMiwok Trail
      Oct 14, 2019 @ 10:58pm
      2 days
      user #1702063fuddercudwishlisttrailWillow Camp
      Oct 13, 2019 @ 10:32pm
      Oct 13, 2019

      Recent Comments

      usernametypetitlecommentdate
      user #794672acyclisttrailMiwok TrailTrail updated to show where bikes are allowed.
      Oct 14, 2019 @ 10:59pm
      2 days
      user #794672acyclisttrailRodeo Valley TrailTrail has been cropped to show section that's...
      Oct 11, 2019 @ 11:10pm
      Oct 11, 2019
      user #954607tassajaRJtrailTenderfootFirst turn at top has a gnarly root section...
      Aug 10, 2019 @ 1:03pm
      Aug 10, 2019
      user #794672acyclisttrailOld StageThe first pleasant fire road I've ridden in...
      Aug 4, 2019 @ 10:48pm
      Aug 4, 2019
      user #794672acyclisttrailMiwok TrailDon't know how you would get to this trail...
      Aug 4, 2019 @ 10:43pm
      Aug 4, 2019

      Nearby Areas

      namedistance
      China Camp 4 14 97.2 km
      Tamarancho / West Marin / North Tam 12 36 29 17.4 km
      Big Rock / Lucas Valley 4 7 5 19.5 km
      Golden Gate Park 79.9 km
      Big Rock / Novato10.6 km

      Local Badges

      • By fmogan77 & contributors
      • Admins: A4B, MCBC
      • #5199 - 5,959 views
      • mt tam / marin headlands activity log | embed map of Mt Tam / Marin Headlands mountain bike trails | mt tam / marin headlands mountain biking points of interest
      • subscribe print map 3d map donate to earn trail karma!

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