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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
      Historic Park that offers hiking, biking and horse back riding. Most the trails are easy difficulty and provide access to the the old orchards and lakes. There are some climbing trails that are good for training and fitness.
      Region Details
      • 3
      • 1
      • 13
      • 4

      Region Status
      Open as of Oct 21, 2019

      Trail Running Stats

      Trails (view details)
      22
      Trails Mountain Bike
      21
      Trails Hike
      22
      Trails Trail Running
      22
      Trails Horse
      4
      Total Distance
      17 miles
      Total Descent Distance
      6 miles
      Total Descent
      3,189 ft
      Total Vertical
      1,978 ft
      Reports
      71

      Recent Ridelog Activity in Region

      Today
      • 0 rides
      • 0 ft avg distance
      Yesterday
      • 0 rides
      • 0 ft avg distance
      Past Week
      • 0 rides
      • 0 ft avg distance

      Photos of Jack London State Historic Park

      trail: Orchard Road
      0 |
      Sep 13, 2019 @ 9:42am
      Sep 13, 2019
      trail: Orchard Road
      4 |
      Sep 13, 2019 @ 9:41am
      Sep 13, 2019
      3 |
      Aug 14, 2019 @ 11:53pm
      Aug 14, 2019
      8 |
      Aug 14, 2019 @ 9:43pm
      Aug 14, 2019

      Videos of Jack London State Historic Park

      Bay Trail Edit
      trail: Bay Trail
      1:32 | 321 | Dec 14, 2008

      Recent Trail Reports

      statustraildateconditionuserinfo
      Orchard Road
      Oct 21, 2019 @ 11:59am
      Oct 21, 2019
      DryTonymosaMountain Bike
      Old Fallen Bridge Trail
      Oct 21, 2019 @ 11:59am
      Oct 21, 2019
      DryTonymosaMountain Bike
      Fern Lake Fire Road
      Oct 21, 2019 @ 11:59am
      Oct 21, 2019
      DryTonymosaMountain Bike
      Asbury Creek Trail
      Oct 21, 2019 @ 11:59am
      Oct 21, 2019
      DryTonymosaMountain Bike
      Upper Fallen Bridge Trail
      Sep 11, 2019 @ 11:30am
      Sep 11, 2019
      DryTonymosaMountain Bike
      North Sonoma Ridge
      Aug 18, 2019 @ 6:26am
      Aug 18, 2019
      DrymikejsullyMountain Bike
      Hayfields
      Aug 18, 2019 @ 6:26am
      Aug 18, 2019
      DrymikejsullyMountain Bike
      Vineyard
      Aug 14, 2019 @ 6:15pm
      Aug 14, 2019
      DryTonymosaMountain Bike Still a little moisture in the deep...
      New Fallen Bridge
      Aug 14, 2019 @ 6:15pm
      Aug 14, 2019
      DryTonymosaMountain Bike Pretty good shape for August.
      Quarry
      Aug 14, 2019 @ 6:15pm
      Aug 14, 2019
      DryTonymosaMountain Bike Sandy dry in places, otherwise good.

      Activity Feed

      usernameactiontypetitledate
      user #1586453jessiejames1108wishlisttrailSonoma Ridge and 1 more
      Nov 11, 2019 @ 4:13am
      Nov 11, 2019
      user #1472644TonymosaaddreportOrchard Road and 3 more
      Oct 22, 2019 @ 10:24pm
      Oct 22, 2019
      user #1472644TonymosadifficultyvotetrailAsbury Creek Trail
      Oct 8, 2019 @ 11:36am
      Oct 8, 2019
      user #1916706TracymcnultywishlisttrailSonoma Ridge
      Oct 6, 2019 @ 9:01pm
      Oct 6, 2019
      user #1472644TonymosaaddreportOld Fallen Bridge Trail and 1 more
      Sep 29, 2019 @ 10:19pm
      Sep 29, 2019

      Recent Comments

      usernametypetitlecommentdate
      user #1472644TonymosatrailPlum TreePlease replace with newer Plum Tree submission.
      Jul 31, 2019 @ 4:41pm
      Jul 31, 2019
      user #1472644TonymosatrailCoon TrapSimply the shortest way to the ridge from Glen...
      Jul 11, 2018 @ 9:57pm
      Jul 11, 2018
      user #1501000Dk563trailSonoma RidgeGreat, narrow, ridge single track.
      Apr 1, 2018 @ 9:09pm
      Apr 1, 2018
      user #1501000Dk563trailCoon TrapLots of hike a bike sections where it is...
      Apr 1, 2018 @ 9:08pm
      Apr 1, 2018
      user #1472644TonymosareportFern LakeFern Lake has a small flow trail that...
      Mar 5, 2018 @ 9:13am
      Mar 5, 2018
      • By todd Trailforks Plus & contributors
      • Admins: SCTC, REMBA, ibiscycles
      • #20658 - 1,280 views
      • jack london state historic park activity log | embed map of Jack London State Historic Park mountain bike trails | jack london state historic park mountain biking points of interest
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      Downloading of trail gps tracks in kml & gpx formats is enabled for Jack London State Historic Park.
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