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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
Trail Flow (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%
  • bi-directional trail
  • no data
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
Contribute Details
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
ATV/ORV/OHV Filter
Max Vehicle Width
inches

Radar Time
Activity Recordings
Trailforks users anonymized public ridelogs from the past 6 months.
  • mountain biking recent
  • mountain biking (>6 month)
  • hiking (1 year)
  • moto (1 year)
Activity Recordings
Trailforks users anonymized public skilogs from the past 12 months.
  • Downhill Ski
  • Backcountry Ski
  • Nordic Ski
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
Trails Deemphasized
Trails are shown in grey.
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      No description for San Francisco Bay Area has been added yet! Login or register to submit one.
      Region Details
      • 519
      • 73
      • 481
      • 601
      • 190
      • 25
      • 2

      Stats

      Avg Trail Rating
      Trails (view details)
      2,209
      Trails Mountain Bike
      1,908
      Trails E-Bike
      283
      Trails Hike
      2,093
      Trails Trail Running
      2,079
      Trails Horse
      202
      Trails Dirtbike/Moto
      81
      Trails Observed Trials
      2
      Trails ATV/ORV/OHV
      58
      Trails Nordic Ski
      1
      Total Distance
      2,701 miles
      Total Descent
      113 miles
      Total Vertical
      4,138 ft
      Highest Trailhead
      4,139 ft
      Reports
      13,932
      Photos
      4,883
      Ridden Counter
      268,820
      Sub Regions

      Popular San Francisco Bay Area Mountain Biking Trails

      statustitledifficultyrating
      B-17 Trail
      Tamarancho / West Marin / North Tam
      Endor (Flow Trail)
      Tamarancho / West Marin / North Tam
      Alchemist Trail
      Tamarancho / West Marin / North Tam
      Broken Dam Trail
      Tamarancho / West Marin / North Tam
      B-17 Extension
      Tamarancho / West Marin / North Tam
      Golden Gate Bridge (West)
      Sausalito
      Oak Ridge
      China Camp
      Cinderella
      Joaquin Miller Park (JMP)
      Wagon Wheel Trail
      Tamarancho / West Marin / North Tam
      Serpentine Trail
      Tamarancho / West Marin / North Tam
      Bay View Trail
      China Camp
      Giant Salamander
      El Corte de Madera Creek Open Space Preserve
      Palos Colorados
      Joaquin Miller Park (JMP)
      Sierra Morena Trail
      El Corte de Madera Creek Open Space Preserve
      North Leaf
      El Corte de Madera Creek Open Space Preserve

      San Francisco Bay Area Mountain Bike Routes

      titleratingdistance
      Calero Park Loop
      Calero County Park
      9 miles
      Calero Loop
      Calero County Park
      7 miles
      Tamarancho Maiden Ride
      Tamarancho / West Marin / North Tam
      14 miles
      Tamarancho Loop
      Tamarancho / West Marin / North Tam
      7 miles
      Moore Creek Loop
      Moore Creek
      8 miles
      Skeggs Figure 8 Loop
      Redwood City
      10 miles
      Waterdog Complete Loop
      Waterdog Lake Park
      7 miles
      Best Of Twin Peaks > Mt.Sutro > Laguna Honda Trail Systems
      Laguna Honda Community Trail System
      8 miles
      Mt Tam Rounder
      Mt Tam
      21 miles
      Mt Tam Round the Dell
      Mt Tam
      26 miles

      Recent Ridelog Activity in Region

      Today
      • 0 rides
      Yesterday
      • 144 rides
      Past Week
      • 1,820 rides

      Photos of San Francisco Bay Area Mountain Bike

      trail: Quarry
      294 |
      Apr 20, 2019 @ 9:46pm
      Apr 20, 2019
      trail: Quarry
      368 |
      Apr 20, 2019 @ 9:41pm
      Apr 20, 2019
      trail: Chaparral
      293 |
      Apr 17, 2019 @ 11:26pm
      Apr 17, 2019
      60 |
      Apr 17, 2019 @ 11:24pm
      Apr 17, 2019
      1,300 |
      Feb 6, 2015 @ 9:41am
      Feb 6, 2015
      | 5 comments
      746 |
      Feb 6, 2015 @ 9:39am
      Feb 6, 2015
      trail: DMC
      965 |
      Dec 27, 2010 @ 2:06am
      Dec 27, 2010
      | 5 comments
      trail: DMC
      560 |
      Oct 25, 2009 @ 9:36am
      Oct 25, 2009
      | 4 comments

      Videos of San Francisco Bay Area Mountain Bike

      Step up at Carlmont
      | Oct 17, 2021
      Oak Cove Trail View
      trail: Oak Cove
      20 | Sep 11, 2021
      Cowboys in Berkeley?
      | Jul 23, 2021
      Sild out at Clarmont

      73 | Jun 28, 2021
      Warp Speed at Carlmont
      94 | Jun 28, 2021
      #fridayfails Gap jump failed @ XXX, Pacifica, CA
      474 | Jun 5, 2021
      Friday Fail- Triple J Deep huck

      105 | May 17, 2021
      My crash at Boy Scout trail
      154 | Apr 28, 2021

      Current Trail Warnings

      statustraildateconditionuserinfo
      Ponti Ridge Trail
      Big Rock / Novato
      Oct 25, 2021 @ 12:23pm
      13 hours
      Wetultimatum Tree down
      Jamie's Cryin
      Pacific Union College Forest
      Oct 22, 2021 @ 4:39pm
      Oct 22, 2021
      IdealTHEedziakLarge tree still down near the top, blind...
      Woodland Trail
      Fernandez Ranch
      Oct 21, 2021 @ 8:06am
      Oct 21, 2021
      DryJohnmcd58The gate at the top of Woodland trail is...

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #1726163RyanBlairwishlisttrailPeters Creek Trail
      Oct 25, 2021 @ 9:18pm
      4 hours
      user #2783902Jessicabigg96wishlistskillparkTamarancho Skill Park
      Oct 25, 2021 @ 2:58pm
      11 hours
      user #2575999YDScommenttrailTower Trail
      Oct 25, 2021 @ 1:23pm
      12 hours
      user #437147jake28likedirectoryTrail Head Cyclery
      Oct 25, 2021 @ 12:43pm
      13 hours
      user #2758160elvis-bvotetrailCottle Trail
      Oct 25, 2021 @ 12:23pm
      13 hours

      Recent Comments

      usernametypetitlecommentdate
      user #2575999YDStrailTower TrailTree down after storm
      Oct 25, 2021 @ 1:23pm
      12 hours
      user #2457637windsurfsftrailIslais Creek TrailI'd you're going to ride into Glen Park canyon...
      Oct 23, 2021 @ 4:15pm
      2 days
      user #1123063richyatlargetrailLower White OakSweet trail
      Oct 21, 2021 @ 9:04pm
      Oct 21, 2021
      user #1212990SbartlebaughreportWoodland TrailThanks for posting the locked gate. JMLT was...
      Oct 21, 2021 @ 3:25pm
      Oct 21, 2021
      user #2457637windsurfsftrailClarendon Knob TrailThe bottom of this trail is a series of switch...
      Oct 17, 2021 @ 9:21pm
      Oct 17, 2021

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike1,9072,342 miles98 miles1,083 mile4,137 ft
      4,82013,912257402,393
      E-Bike283407 miles93,661 ft186 miles4,134 ft
      1111,5693314,936
      Hike2,0932,587 miles108 miles1,193 mile4,137 ft
      4713,7953215,248
      Trail Running2,0792,586 miles108 miles1,192 mile4,137 ft
      313,795297,024
      Horse202289 miles54,902 ft126 miles4,131 ft
      3,019918
      Dirtbike/Moto8176 miles14,744 ft36 miles1,788 ft
      2,920353
      Observed Trials22 miles272 ft3,862 ft262 ft
      2818
      ATV/ORV/OHV5855 miles9,846 ft25 miles1,729 ft
      2,91716
      Nordic Ski14,442 ft98 ft1,601 ft223 ft
      232
      • By canadaka Trailforks & contributors
      • Admins: CAMTB, ericfoltz, Redhawk, jpmcghee, brianpetry
      • #7857 - 26,275 views
      • san francisco bay area activity log | embed map of San Francisco Bay Area mountain bike trails | san francisco bay area mountain biking points of interest polygons

      Downloading of trail gps tracks in kml & gpx formats is enabled for San Francisco Bay Area.
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