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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 San Francisco Bay Area has been added yet! Login or register to submit one.
      Region Details
      • 304
      • 26
      • 266
      • 389
      • 138
      • 16
      • 2

      Region Status
      Open as of 11 mins ago

      Stats

      Avg Trail Rating
      Trails (view details)
      1,221
      Trails Mountain Bike
      1,159
      Trails E-Bike
      29
      Trails Hike
      1,214
      Trails Trail Running
      1,214
      Trails Horse
      33
      Total Distance
      1,663 miles
      Total Descent
      415,167 ft
      Total Vertical
      3,698 ft
      Highest Trailhead
      3,699 ft
      Reports
      4,629
      Photos
      3,643
      Ridden Counter
      73,805
      Sub Regions

      Photos of San Francisco Bay Area Mountain Bike

      819 |
      Feb 6, 2015 @ 9:41am
      Feb 6, 2015
      | 3 comments
      437 |
      Feb 6, 2015 @ 9:39am
      Feb 6, 2015
      trail: DMC
      683 |
      Dec 27, 2010 @ 2:06am
      Dec 27, 2010
      | 5 comments
      trail: DMC
      398 |
      Oct 25, 2009 @ 9:36am
      Oct 25, 2009
      | 4 comments

      Videos of San Francisco Bay Area Mountain Bike

      0:09 | 7 | Sep 15, 2019
      Chaparral DH JMP Gravel Bike : Self Shot Not...
      trail: Chaparral
      1:57 | 75 | Jun 19, 2019
      Tito Tim on the loose in WD mini Flow trail
      0:39 | 2 | May 14, 2019
      Friday Fail
      0:22 | 348 | May 6, 2019

      Current Trail Warnings

      statustraildateconditionuserinfo
      Angwish
      Pacific Union College Forest
      Oct 13, 2019 @ 3:37pm
      22 hours
      DrywinebradTree down near bottom must dismount.
      Devil's Backbone
      Rockville Hills Regional Park
      Oct 10, 2019 @ 4:47pm
      Oct 10, 2019
      Very DryskibrdClosed for fire watch/danger
      Boundary Road
      Pacific Union College Forest
      Oct 10, 2019 @ 12:47pm
      Oct 10, 2019
      UnknownwinebradFew Trees down

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #1916383PizNeyWorksYTaddreportBig Trees (West) and 2 more
      Oct 14, 2019 @ 1:08pm
      13 mins
      user #794672acyclistaddtrailSlacker Hill Trail
      Oct 14, 2019 @ 1:07pm
      15 mins
      user #1645802LuckyMTBriddentrailKeiths's Creative Line
      Oct 14, 2019 @ 9:59am
      3 hours
      user #1657098roastchickenriddenskillparkLake Cunningham Action Sports Park
      Oct 14, 2019 @ 8:26am
      5 hours
      user #1657098roastchickenriddenskillparkActions Sports Park
      Oct 14, 2019 @ 8:25am
      5 hours

      Recent Comments

      usernametypetitlecommentdate
      user #794672acyclisttrailRodeo Valley TrailTrail has been cropped to show section that's...
      Oct 11, 2019 @ 11:10pm
      3 days
      user #1848487florihupftrailGardener's TrailThis is a great, small trail section!
      Oct 11, 2019 @ 11:17am
      Oct 11, 2019
      user #1425228HburkstrailTafoni (Lower)+1 to deln78's comments - I road this after...
      Oct 5, 2019 @ 6:39pm
      Oct 5, 2019
      user #1425228HburkstrailSouth LeafSouth Leaf is pretty gnarly as jizgrey...
      Oct 5, 2019 @ 6:28pm
      Oct 5, 2019
      user #1209781PhilWongtrailSummit Trail - Mt. DiabloIs it even remotely possible to cycle up this...
      Oct 4, 2019 @ 2:00pm
      Oct 4, 2019

      Local Badges

      • By canadaka Trailforks Plus & contributors
      • Admins: chuktA, WillieJacobsz, adaptivemike, CAMTB, ericfoltz, jpmcghee, brianpetry
      • #7857 - 9,393 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
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