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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Partial
  • 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
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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
Winter Trails
Warning A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
x Missing Trails
Most Popular
Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
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 has been added yet! Login or register to submit one.
      Activities Click to view
      Region Details
      • 64
      • 16
      • 769
      • 19
      • 14
      • 5
      • 1

      Region Status
      Open as of May 22, 2024
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      1,238
      Trails Mountain Bike
      889
      Trails E-Bike
      56
      Trails Hike
      1,238
      Trails Trail Running
      1,230
      Total Distance
      209 miles
      Total Descent
      17,229 ft
      Total Vertical
      920 ft
      Highest Trailhead
      924 ft
      Reports
      852
      Photos
      69
      Ridden Counter
      78,071

      Outside Logo Articles

      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.
      Sub Regions

      Photos of San Francisco Mountain Bike

      8 |
      Jun 16, 2023 @ 3:32pm
      Jun 16, 2023
      6 |
      Jun 16, 2023 @ 3:19pm
      Jun 16, 2023
      14 |
      Jun 16, 2023 @ 3:19pm
      Jun 16, 2023
      5 |
      Jun 15, 2023 @ 5:52pm
      Jun 15, 2023
      6 |
      Jun 15, 2023 @ 5:52pm
      Jun 15, 2023
      9 |
      Jun 15, 2023 @ 5:48pm
      Jun 15, 2023
      11 |
      Jun 15, 2023 @ 5:48pm
      Jun 15, 2023
      10 |
      Jun 15, 2023 @ 5:44pm
      Jun 15, 2023

      Videos of San Francisco Mountain Bike

      Fairy Gates DH
      231 | Dec 5, 2022
      Upper Historic DH
      55 | Nov 2, 2022
      | Jul 29, 2022
      | Jul 29, 2022
      McLaren Jumps
      105 | May 20, 2022
      Epic Trails with Patsquatch
      5:31 | 393 | Feb 4, 2011
      San Francisco ❱ Mount Sutro ❱ West Ridge...
      1:55 | 487 | Apr 21, 2022 , San Francisco
      San Francisco ❱ Ghost Trail and others ❱...
      11:55 | 411 | Apr 20, 2022 , San Francisco

      Current Trail Warnings

      statustraildateconditionuserinfo
      Twin Peaks Rampage
      Apr 29, 2024 @ 9:23pm
      Apr 29, 2024
      Unknownnot-knot large concrete barrier right at the...

      Recent Trail Reports

      statustraildateconditioninfouser
      South Ridge Trail
      May 22, 2024 @ 10:06am
      May 22, 2024
      IdealSee Sutro Stewards ... have to detour via...adhchan
      Troop 88
      May 22, 2024 @ 10:06am
      May 22, 2024
      IdealOvergrown - careful of poison oak.adhchan
      Fairy Gates Trail
      May 3, 2024 @ 12:50pm
      May 3, 2024
      Idealdrush95
      Mystery Trail
      May 3, 2024 @ 12:50pm
      May 3, 2024
      VariableStarting to get a bit overgrowndrush95
      Quarry Road Trail
      May 3, 2024 @ 12:50pm
      May 3, 2024
      Idealdrush95
      Bay Trail Alternative
      Apr 22, 2024 @ 2:49am
      Apr 22, 2024
      Idealstepmex
      Aquatic Park Cove Trail
      Apr 22, 2024 @ 2:49am
      Apr 22, 2024
      Idealstepmex
      Timber Trail
      Apr 19, 2024 @ 7:36am
      Apr 19, 2024
      Ideal matthewsfur SFUR
      Juvenile Justice Trail
      Apr 19, 2024 @ 7:34am
      Apr 19, 2024
      Ideal This trail is closed as it goes through...matthewsfur SFUR
      Historic Trail
      Apr 14, 2024 @ 4:03pm
      Apr 14, 2024
      IdealBottom section is still closed.banq

      Activity Feed

      usernameactiontypetitledate
      Shanen4uQi8riddentrailactivity #53087537
      May 24, 2024 @ 3:19pm
      3 days
      Shanen4uQi8riddentrailactivity #53087523
      May 24, 2024 @ 3:18pm
      3 days
      Shanen4uQi8riddentrailactivity #53087508
      May 24, 2024 @ 3:18pm
      3 days
      TOntBn5vwishlistrouteactivity #53075416
      May 24, 2024 @ 10:28am
      May 24, 2024
      adhchanaddreportactivity #53028467
      May 23, 2024 @ 9:44am
      May 23, 2024

      Recent Comments

      usernametypetitlecommentdate
      justridingalong1trailEast Ridge TrailMakes sense thank you!
      Mar 11, 2024 @ 12:01pm
      Mar 11, 2024
      sutrostewardstrailEast Ridge TrailWe have not received official word from UC...
      Mar 11, 2024 @ 11:42am
      Mar 11, 2024
      justridingalong1trailEast Ridge TrailIs this still closed? I walked it shortly...
      Mar 10, 2024 @ 9:11am
      Mar 10, 2024
      matthewsfurreportTimber TrailThanks for the report. We'll get to this soon....
      Feb 7, 2024 @ 12:53pm
      Feb 7, 2024
      matthewsfurreportSteep Ravine TrailThanks for the report. We'll get to this soon....
      Feb 7, 2024 @ 12:53pm
      Feb 7, 2024

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike888176 miles13,622 ft66 miles909 ft
      #340#183668523557,413
      E-Bike5629 miles1,522 ft8 miles850 ft
      #586#1726992,474
      Hike1,238209 miles17,103 ft77 miles922 ft
      #235#147852732,479
      Trail Running1,230207 miles17,080 ft77 miles922 ft
      #237#14738517116,807
      • By markholloway Trailforks Map Team & contributors
      • Admins: spokesmanmtb, SFUR
      • #13926 - 9,652 views

      Downloading of trail gps tracks in kml & gpx formats is enabled for San Francisco.
      You must login to download files.