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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Inadequate
  • 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
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Radar Time
x 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
  • Snowmobile
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
      • 653
      • 99
      • 1,508
      • 843
      • 235
      • 27
      • 5

      Stats

      Avg Trail Rating
      Trails (view details)
      4,243
      Trails Mountain Bike
      3,372
      Trails E-Bike
      483
      Trails Horse
      455
      Trails Hike
      4,162
      Trails Trail Running
      4,153
      Trails Dirtbike/Moto
      18
      Trails Observed Trials
      2
      Trails Nordic Ski
      1
      Total Distance
      3,599 miles
      Total Descent
      744,616 ft
      Total Vertical
      4,313 ft
      Highest Trailhead
      4,314 ft
      Reports
      21,631
      Photos
      5,984
      Ridden Counter
      412,616

      Outside Logo Articles

      Recommended Routes: Los Gatos, California - CyclingTips
      Mar 30, 2021 from cyclingtips.com
      There is no excerpt because this is a protected post.
      The 5 Best New Thru-Hikes to Start Planning Now
      Jan 4, 2022 from backpacker.com
      Start planning to hike these in-progress U.S. trails in 2022.
      Registration Opens For 2022 BetterRide Skills Courses
      Dec 29, 2021 from pinkbike.com
      Three-day coaching courses in Nevada, Colorado, Utah, Arizona, and more.
      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
      Wagon Wheel Trail
      Tamarancho / West Marin / North Tam
      Serpentine Trail
      Tamarancho / West Marin / North Tam
      Golden Gate Bridge (West)
      Sausalito
      Oak Ridge
      China Camp
      Cinderella
      Joaquin Miller Park (JMP)
      Bay View Trail
      China Camp
      Sierra Morena Trail
      El Corte de Madera Creek Open Space Preserve
      Palos Colorados
      Joaquin Miller Park (JMP)
      Giant Salamander
      El Corte de Madera Creek Open Space Preserve
      South Burma
      Annadel State Park

      San Francisco Bay Area Mountain Bike Routes

      titleratingdistance
      Tamarancho Maiden Ride
      Tamarancho / West Marin / North Tam
      14 miles
      Calero Loop
      Calero County Park
      7 miles
      Calero Park Loop
      Calero County Park
      9 miles
      Waterdog Complete Loop
      Waterdog Lake Park
      7 miles
      Ride the Crockett Hills
      Crockett Hills Regional Park
      13 miles
      san vicente
      Calero County Park
      10 miles
      Moore Creek Loop
      Moore Creek Park and Hennessey Units
      8 miles
      Skegg's Point 7
      Redwood City
      10 miles
      China Camp dark
      China Camp
      13 miles
      Canyon/Marsh/SBurma
      Annadel State Park
      9 miles

      Recent Ride Log Activity in Region

      Today
      • 288 rides
      Yesterday
      • 382 rides
      Past Week
      • 2,716 rides

      Photos of San Francisco Bay Area Mountain Bike

      trail: Quarry
      419 |
      Apr 20, 2019 @ 9:46pm
      Apr 20, 2019
      trail: Quarry
      526 |
      Apr 20, 2019 @ 9:41pm
      Apr 20, 2019
      trail: Chaparral
      438 |
      Apr 17, 2019 @ 11:26pm
      Apr 17, 2019
      103 |
      Apr 17, 2019 @ 11:24pm
      Apr 17, 2019
      1,590 |
      Feb 6, 2015 @ 9:41am
      Feb 6, 2015
      | 5 comments
      947 |
      Feb 6, 2015 @ 9:39am
      Feb 6, 2015
      trail: DMC
      1,051 |
      Dec 27, 2010 @ 2:06am
      Dec 27, 2010
      | 5 comments
      trail: DMC
      619 |
      Oct 25, 2009 @ 9:36am
      Oct 25, 2009
      | 4 comments

      Videos of San Francisco Bay Area Mountain Bike

      Rock garden
      trail: South Leaf
      1 | Jan 23, 2023
      BOOST
      trail: DMC
      14 | Jan 9, 2023
      Fairy Gates DH
      17 | Dec 5, 2022
      Back 9/Thorn Alley mashup
      trail: Back 9
      12 | Nov 25, 2022
      Thorn Alley/Back 9 mashup
      6 | Nov 25, 2022
      Thorn Alley 11/14/22
      13 | Nov 17, 2022
      Upper Historic DH
      12 | Nov 2, 2022
      Mile rock waterfall garden completion
      trail: Mile
      23 | Oct 8, 2022

      Current Trail Warnings

      statustraildateconditionuserinfo
      Utter Delight
      Carlmont Hills
      Jan 29, 2023 @ 1:35pm
      10 hours
      IdealACM1234Major erosion (major ruts or slumping,...
      Old Cazadero Road
      Santa Rosa
      Jan 29, 2023 @ 12:27pm
      11 hours
      Wetcollincranecreek uncrossable d/t significant rain
      Blue Blossom
      El Corte de Madera Creek Open Space Preserve
      Jan 28, 2023 @ 5:23pm
      1 day
      VariablecrabkillaLots of mud and many trees down. The fire...

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #2638842TrochteaddreportTree Tunnel Trail and 1 more
      Jan 29, 2023 @ 10:24pm
      1 hours
      user #3202907NelsonYlSJ2iwishlisttrailHoo-Koo-E-Koo
      Jan 29, 2023 @ 8:35pm
      3 hours
      user #3202907NelsonYlSJ2iwishlistrouteTamarancho Loop
      Jan 29, 2023 @ 8:34pm
      3 hours
      user #3202907NelsonYlSJ2iwishlisttrailEndor (Flow Trail)
      Jan 29, 2023 @ 8:33pm
      3 hours
      user #3209399crabkillaaddreportManzanita and 5 more
      Jan 29, 2023 @ 4:49pm
      7 hours

      Recent Comments

      usernametypetitlecommentdate
      user #1965032lisaonridereportLongview ConnectIt's near the round tank on the trail. Will...
      Jan 28, 2023 @ 4:55pm
      1 day
      user #2817840BeusbeustrailHavey Canyon TrailA fun trail. It’s currently very muddy but...
      Jan 27, 2023 @ 7:53pm
      2 days
      user #1454246Mick-etrailSan Pablo Ridge TrailThis is not a trail. It's a no longer used...
      Jan 26, 2023 @ 5:07pm
      Jan 26, 2023
      user #1454246Mick-etrailBelgum Trail (Bay side)This is not a trail. It's a no longer used...
      Jan 26, 2023 @ 5:05pm
      Jan 26, 2023
      user #3275370thekumartrailHidden Valley TrailE-MTBs are allowed on East Bay trails,...
      Jan 24, 2023 @ 5:48pm
      Jan 24, 2023

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike3,3722,956 miles600,049 ft1,336 mile4,314 ft
      5,82921,609384622,884
      E-Bike483604 miles117,238 ft264 miles4,137 ft
      4618,2505032,151
      Horse455578 miles111,076 ft257 miles4,137 ft
      3,7341225
      Hike4,1623,548 miles729,695 ft1,609 mile4,314 ft
      8521,41821027,887
      Trail Running4,1533,550 miles729,180 ft1,610 mile4,314 ft
      621,41720119,576
      Dirtbike/Moto189 miles1,709 ft4 miles600 ft
      3,5063108
      Observed Trials22 miles272 ft3,862 ft262 ft
      21842
      Nordic Ski14,442 ft98 ft1,601 ft223 ft
      267
      • By canadaka Trailforks & contributors
      • Admins: CAMTB, ericfoltz, MountainBikeBill, Redhawk, jpmcghee, brianpetry, susiemurphy, maddy03, spokesmanmtb
      • #7857 - 40,609 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

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