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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
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
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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      Activities Click to view
      Region Details
      • 29
      • 1
      • 126
      • 96
      • 10

      Stats

      Avg Trail Rating
      Trails (view details)
      300
      Trails Mountain Bike
      273
      Trails E-Bike
      23
      Trails Horse
      97
      Trails Hike
      323
      Trails Trail Running
      323
      Trails Nordic Ski
      2
      Total Distance
      308 miles
      Total Descent
      59,939 ft
      Total Vertical
      2,714 ft
      Highest Trailhead
      2,731 ft
      Reports
      2,661
      Photos
      868
      Ridden Counter
      40,898

      Popular Sonoma County Mountain Biking Trails

      statustitledifficultyrating
      South Burma
      Annadel State Park
      North Burma
      Annadel State Park
      Channel Trail
      Annadel State Park
      Marsh Trail
      Annadel State Park
      Richardson
      Annadel State Park
      Lawndale
      Annadel State Park
      Two Quarry
      Annadel State Park
      Schultz
      Annadel State Park
      Lawndale Road
      Annadel State Park
      Schultz Road
      Annadel State Park
      Canyon Trail
      Annadel State Park
      Spring Creek
      Annadel State Park
      Live Oak
      Annadel State Park
      Pig Flat
      Annadel State Park
      Lake Trail
      Annadel State Park

      Sonoma County Mountain Bike Routes

      titleratingdistance
      Canyon/Marsh/SBurma
      Annadel State Park
      9 miles
      Tour of the Burmas
      Annadel State Park
      17 miles
      Annadel State Park Rte 1
      Sonoma County
      12 miles
      Annadel XC
      Annadel State Park
      16 miles
      Trione-Annadel Adventure
      Annadel State Park
      21 miles
      willow creek barn loop
      11 miles
      Annadel Classic Loop
      Annadel State Park
      23 miles
      Annadel XC Fun Loop
      Annadel State Park
      15 miles
      Trailforks Ride Plan
      Annadel State Park
      11 miles
      Burmas Plus Cobblestone
      Annadel State Park
      17 miles

      Recent Ride Log Activity in Region

      Today
      • 9 rides
      Yesterday
      • 35 rides
      Past Week
      • 154 rides

      Photos of Sonoma County Mountain Bike

      4 |
      Oct 24, 2024 @ 8:38pm
      Oct 24, 2024
      5 |
      Oct 24, 2024 @ 8:38pm
      Oct 24, 2024
      trail: Schultz
      154 |
      Jul 24, 2020 @ 3:00pm
      Jul 24, 2020
      trail: North Burma
      302 |
      Dec 24, 2018 @ 12:11pm
      Dec 24, 2018
      trail: Schultz
      104 |
      Jul 17, 2018 @ 7:30pm
      Jul 17, 2018
      trail: Cobblestone
      471 |
      Jul 5, 2016 @ 6:13pm
      Jul 5, 2016
      trail: North Burma
      294 |
      Jan 1, 2016 @ 12:04pm
      Jan 1, 2016
      trail: Cobblestone
      809 |
      Jan 1, 2013 @ 4:50pm
      Jan 1, 2013

      Videos of Sonoma County Mountain Bike

      Graveyard Winter 2023
      trail: Graveyard
      23 | Jan 10, 2024
      Annadel Rock Pile
      trail: Rough Go
      50 | Dec 5, 2023
      Fun DH at Foothill
      trail: Alta Vista
      82 | Apr 27, 2021
      Fun and Putnam!
      68 | Apr 22, 2021
      Colin sends it
      376 | Feb 13, 2021
      graveyard Marin crash
      trail: Graveyard
      139 | Nov 25, 2020
      Human Case Pad To Fractured Scaphoid
      trail: Graveyard
      261 | Nov 13, 2020
      Annadel SP N.Burma drop in to map post..
      0:01 | 187 | Jun 13, 2020

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      KevinLkdojTriddentrailactivity #65798863
      Feb 6, 2025 @ 1:26pm
      Feb 6, 2025
      bikedrdcommenttrailactivity #65397754
      Jan 29, 2025 @ 6:26pm
      Jan 29, 2025
      oTIN0Triddentrailactivity #65301140
      Jan 27, 2025 @ 7:16pm
      Jan 27, 2025
      projectnortheastaddvideoactivity #65255563
      Jan 26, 2025 @ 5:00pm
      Jan 26, 2025
      Chicub14riddentrailactivity #65216704
      Jan 26, 2025 @ 7:55am
      Jan 26, 2025

      Recent Comments

      usernametypetitlecommentdate
      bikedrdtrailSDBNot really a green trail. Fun and fast blue.
      Jan 29, 2025 @ 6:26pm
      Jan 29, 2025
      HonyockertrailNectarNectar exists on State Park property. Above...
      Dec 3, 2024 @ 1:52pm
      Dec 3, 2024
      EllahkkpkCtrailRidgetopRode this today and it there was a lot of...
      Nov 30, 2024 @ 9:17pm
      Nov 30, 2024
      LmpicardtrailSky Lupine TrailNot an entirely fun climb. Love the trails...
      Nov 11, 2024 @ 7:57am
      Nov 11, 2024
      bigboyriffstrailCobblestoneSurprised to see no comments on this one....
      Oct 23, 2024 @ 10:09am
      Oct 23, 2024

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike270257 miles50,640 ft117 miles2,713 ft
      7982,6932783,049
      E-Bike2327 miles1,532 ft10 miles1,870 ft
      32,34653,958
      Horse9793 miles18,182 ft40 miles2,694 ft
      638
      Hike322307 miles59,298 ft135 miles2,713 ft
      672,69234,695
      Trail Running323305 miles59,337 ft135 miles2,713 ft
      42,69232,744
      Nordic Ski21 mile13 ft846 ft371 ft
      1
      • By steeveoh & contributors
      • Admins: jpmcghee, sanfret, brianpetry, SCTC, ninertom
      • #7321 - 20,442 views

      Downloading of trail gps tracks in kml & gpx formats is enabled for Sonoma County.
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