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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 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
ATV/ORV/OHV Filter
Max Vehicle Width
inches

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
  • Ideal
  • 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
      • 333
      • 50
      • 365
      • 491
      • 156
      • 19
      • 2

      Region Status
      Open as of 4 hours

      Stats

      Avg Trail Rating
      Trails (view details)
      1,592
      Trails Mountain Bike
      1,462
      Trails E-Bike
      93
      Trails Hike
      1,547
      Trails Trail Running
      1,544
      Trails Horse
      107
      Trails Dirtbike
      81
      Trails ATV/ORV/OHV
      58
      Trails Nordic Ski
      1
      Total Distance
      1,896 miles
      Total Descent
      453,606 ft
      Total Vertical
      3,698 ft
      Highest Trailhead
      3,699 ft
      Reports
      7,657
      Photos
      4,009
      Ridden Counter
      133,134
      Sub Regions

      Popular San Francisco Bay Area Mountain Biking Trails

      statustitledifficultyrating
      B-17 Trail
      Tamarancho / West Marin / North Tam
      Broken Dam Trail
      Tamarancho / West Marin / North Tam
      Alchemist Trail
      Tamarancho / West Marin / North Tam
      Endor (Flow 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
      Cinderella
      Joaquin Miller Park
      Goldman Trail
      Tamarancho / West Marin / North Tam
      Golden Gate Bridge (West)
      Sausalito
      Oak Ridge
      China Camp
      Palos Colorados
      Joaquin Miller Park
      Bay View Trail
      China Camp
      Upper Palos Colorados
      Joaquin Miller Park
      Sequoia-Bayview Trail
      Joaquin Miller Park

      San Francisco Bay Area Mountain Bike Routes

      titleratingdistance
      Calero Park Loop
      Calero County Park
      9 miles
      China Camp dark
      China Camp
      13 miles
      Chill Rockville Loop
      Rockville Hills Regional Park
      4 miles
      Harvey Bear Loop
      Coyote Lake - Harvey Bear Ranch County Park
      13 miles
      Waterdog Complete Loop
      Water Dog Lake Park
      7 miles
      Skegg's Point 7
      Redwood City
      10 miles
      2018 East Bay Dirt Classic Short Course
      Redwood Regional Park
      24 miles
      East Ridge / West Ridge Loop
      Joaquin Miller Park
      8 miles
      Rockville 10-miler
      Rockville Hills Regional Park
      10 miles
      Oat Mine Loop
      Calistoga
      26 miles

      Recent Ridelog Activity in Region

      Today
      • 96 rides
      • 13 miles avg distance
      Yesterday
      • 324 rides
      • 14 miles avg distance
      Past Week
      • 2,708 rides
      • 15 miles avg distance

      Photos of San Francisco Bay Area Mountain Bike

      935 |
      Feb 6, 2015 @ 9:41am
      Feb 6, 2015
      | 4 comments
      528 |
      Feb 6, 2015 @ 9:39am
      Feb 6, 2015
      trail: DMC
      773 |
      Dec 27, 2010 @ 2:06am
      Dec 27, 2010
      | 5 comments
      trail: DMC
      447 |
      Oct 25, 2009 @ 9:36am
      Oct 25, 2009
      | 4 comments

      Videos of San Francisco Bay Area Mountain Bike

      Wind + Bike = Crash
      trail: Mile
      0:54 | 77 | Jul 1, 2020
      Duke At Carlmont
      0:08 | 383 | May 17, 2020
      Jake at cmont
      0:06 | 197 | May 16, 2020
      Willow Ridge Trail
      0:41 | 33 | Apr 22, 2020

      Current Trail Warnings

      statustraildateconditionuserinfo
      Havey Canyon Trail
      Tilden and Wildcat Canyon
      Aug 12, 2020 @ 2:21pm
      2 days
      DryBlairWitch1closed till 8/20
      Jack-Daniels
      Carlmont Hills
      Aug 6, 2020 @ 10:38am
      Aug 6, 2020
      DryarmenkrakBottom is very overgrown
      Big Boulder
      Pacific Union College Forest
      Aug 6, 2020 @ 9:32am
      Aug 6, 2020
      UnknownjibmasterForest Mgt. felling trees in the area. ...

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #2109967geckodudesaddreportEcho and 2 more
      Aug 14, 2020 @ 2:15pm
      1 hours
      user #2186939calialiroseaddreportBay Laurel Trail and 4 more
      Aug 14, 2020 @ 12:36pm
      3 hours
      user #1770420fentonbaddreportStile Ranch
      Aug 14, 2020 @ 11:13am
      4 hours
      user #2268580dkgsxaddreportKennedy and 2 more
      Aug 14, 2020 @ 9:21am
      6 hours
      user #1722485PerezdanwishlisttrailAlum Rock Falls Road
      Aug 14, 2020 @ 9:19am
      6 hours

      Recent Comments

      usernametypetitlecommentdate
      user #1866691BlairWitch1trailFree Fallif this is black aqua vista is double black
      Aug 12, 2020 @ 2:18pm
      2 days
      user #1866691BlairWitch1trailFree Fallyea it’s pretty steep but not a black
      Aug 12, 2020 @ 2:05pm
      2 days
      user #1866691BlairWitch1trailSinawiksuper fast and fun
      Aug 11, 2020 @ 5:42pm
      3 days
      user #1866691BlairWitch1trailAccess Trailvery steep access road to get into the good stuff
      Aug 11, 2020 @ 5:32pm
      3 days
      user #1630544spokesmanmtbtrailLimekiln - LowerI just separated the trail. It makes more...
      Aug 11, 2020 @ 7:50am
      Aug 11, 2020

      Local Badges

      • By canadaka Trailforks Plus & contributors
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      • #7857 - 14,111 views
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