close
Layers winter
Trail Style
  • ?
Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
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 or Major Issue / Red

  • 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 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
  • Water Fountain/Source Water Fountain/Source
  • Sight Sight
  • Restrooms Restrooms
  • Gate Gate
  • Camping Camping
  • Trail Sign Trail Sign
  • Table or Bench Table or Bench
  • Other Other
      No description for Big Rock / Lucas Valley has been added yet! Login or register to submit one.
      Region Details
      • 8
      • 4
      • 7
      • 5
      • 1

      Local Trail Association
      local trail association
      A4B       (www.access4bikes.com)
      local trail association
      MCBC (www.marinbike.org)

      Stats

      Avg Trail Rating
      Global Ranking
      #2,932
      State Ranking
      #145
      Trails
      25
      Total Distance
      39 miles
      Total Descent Distance
      22 miles
      Total Descent
      17,574 ft
      Highest Trailhead
      1,868 ft
      Total Vertical
      1,763 ft
      Reports
      26
      Photos
      79
      Ridden Counter
      237

      Photos of Big Rock / Lucas Valley Mountain Bike

      3 |
      Jun 7, 2018 @ 7:53pm
      Jun 7, 2018
      Skywalker Singletrack
      trail: 680
      3 |
      Jun 4, 2018 @ 10:57am
      Jun 4, 2018
      680, Petaluma
      trail: 680
      12 |
      May 29, 2018 @ 12:42pm
      May 29, 2018
      680, San Rafael
      trail: 680
      5 |
      May 4, 2018 @ 11:31am
      May 4, 2018
      680, Fairfax
      more photos »

      Videos of Big Rock / Lucas Valley Mountain Bike

      Big Rock
      0:09 | 39 | Sep 27, 2017
      BRAKE FADE!!!!!!!!!!!!
      trail: Rotor Burn
      2:17 | 132 | Jul 14, 2016
      680 to Solstice
      trail: 680
      8:41 | 547 | Jan 21, 2013
      more videos »

      Recent Comments

      usernametypetitlecommentdate
      user #1501000Dk563trailLuiz Fire RoadBrutally and relentlessly steep fire road. ...
      Apr 1, 2018 @ 9:12pm
      Apr 1, 2018
      user #1204338RammerpantsreportSkywalker SingletrackAlso, this is a green trail!
      Mar 4, 2018 @ 6:33pm
      Mar 4, 2018
      user #1121408SeaBass97trailGoat TrailSuper loose, steep,narrow downhill that really...
      Dec 5, 2017 @ 6:21pm
      Dec 5, 2017
      user #939163gbeaks33trailIdylberry TrailIs this trail open for bikes. I came to visit...
      Sep 15, 2017 @ 7:09pm
      Sep 15, 2017
      user #801820SpindelatrontrailLuiz Ranch Fire roadConfusing with Luiz Fire Road (Big Zig) right...
      Sep 3, 2015 @ 11:42am
      Sep 3, 2015
      more »

      Recent Activity

      usernameactiontypetitledate
      user #675864CFStewieaddridelogJun 19, 2018 ride log
      Jun 19, 2018 @ 7:24am
      23 hours
      user #1381289CoxieaddridelogJun 17, 2018 ride log
      Jun 17, 2018 @ 7:28pm
      2 days
      user #675864CFStewieaddridelogJun 17, 2018 ride log
      Jun 17, 2018 @ 11:56am
      3 days
      user #1381289CoxieaddridelogJun 16, 2018 ride log
      Jun 16, 2018 @ 8:37pm
      Jun 16, 2018
      user #675864CFStewieaddridelogJun 16, 2018 ride log
      Jun 16, 2018 @ 1:36pm
      Jun 16, 2018
      view more »

      Nearby Riding Areas

      namedistance
      Tamarancho / West Marin / North Tam 11 36 28 13.1 km
      China Camp 3 11 75.9 km
      Stafford Lake Bike Park 1 1 16.3 km
      Marin County Open Space: Rush Creek 26.4 km
      Mt Tam / Marin Headlands 6 15 59.5 km

      Local Mountain Bike Directory


      view full directory »
      • By brenthillier NSMBA Plus & contributors
      • Admins: A4B, MCBC
      • #3979 - 3,249 views
      • big rock / lucas valley activity log | embed map of Big Rock / Lucas Valley mountain bike trails | big rock / lucas valley mountain biking points of interest
      • subscribe print map 3d map donate to earn trail karma!

      Downloading of trail gps tracks in kml & gpx formats is enabled for Big Rock / Lucas Valley.
      You must login to download files.