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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 Alameda County has been added yet! Login or register to submit one.
      Region Details
      • 45
      • 12
      • 51
      • 50
      • 9

      Region Status
      Open as of Oct 15, 2019 ago
      Local Trail Association
      local trail association
      BTCEB
      (www.btceb.org)

      Stats

      Avg Trail Rating
      Trails (view details)
      195
      Trails Mountain Bike
      168
      Trails E-Bike
      2
      Trails Hike
      196
      Trails Trail Running
      196
      Trails Horse
      28
      Total Distance
      257 miles
      Total Descent
      49,332 ft
      Total Vertical
      2,531 ft
      Highest Trailhead
      2,535 ft
      Reports
      835
      Photos
      294
      Ridden Counter
      11,036

      Photos of Alameda County Mountain Bike

      39 |
      Apr 17, 2019 @ 11:45pm
      Apr 17, 2019
      32 |
      Apr 17, 2019 @ 11:45pm
      Apr 17, 2019
      trail: Big Trees
      30 |
      Apr 17, 2019 @ 11:27pm
      Apr 17, 2019
      trail: Chaparral
      45 |
      Apr 17, 2019 @ 11:26pm
      Apr 17, 2019

      Videos of Alameda County Mountain Bike

      Chaparral DH JMP Gravel Bike : Self Shot Not...
      trail: Chaparral
      1:57 | 75 | Jun 19, 2019
      Grass Valley Skatepark: Mini Edit
      1:31 | 118 | Nov 17, 2017
      Craaaash!
      trail: Cinderella
      1:04 | 685 | Jun 22, 2017
      Cinderella-Joaquin Miller
      trail: Cinderella
      1:46 | 353 | Jan 29, 2017

      Current Trail Warnings

      statustraildateconditionuserinfo
      Bridgeview
      Joaquin Miller Park
      Oct 7, 2019 @ 7:20pm
      Oct 7, 2019
      DryPizNeyWorksYTTrail closed from the Liemert bridge side

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #1673754DylshackriddentrailCourdet
      Oct 19, 2019 @ 12:04am
      2 days
      user #1837292GsunnergrenwishlisttrailEast Shore and 1 more
      Oct 18, 2019 @ 1:18pm
      3 days
      user #1691283atomtanriddentrailShady Canyon Trail
      Oct 18, 2019 @ 6:22am
      Oct 18, 2019
      user #552351dbradmwishlisttrailWest Ridge and 3 more
      Oct 17, 2019 @ 2:47pm
      Oct 17, 2019
      user #1172503RhubarbbsaddreportPAL Camp
      Oct 15, 2019 @ 8:09pm
      Oct 15, 2019

      Recent Comments

      usernametypetitlecommentdate
      user #1209781PhilWongtrailWater TowerThis trail, which is actually known as...
      Oct 4, 2019 @ 1:57pm
      Oct 4, 2019
      user #1788178FiskytrailSinbad CreekFire road
      Sep 23, 2019 @ 3:39pm
      Sep 23, 2019
      user #1216601CraigBansheetrailConnectors certain sz is oNot bN
      Sep 21, 2019 @ 11:23am
      Sep 21, 2019
      user #1788178FiskyreportCourdetThis was meant for Front 9. I can’t find a...
      Sep 19, 2019 @ 2:42pm
      Sep 19, 2019
      user #1788178FiskytrailCourdetThe last comment was meant for Front 9. I...
      Sep 19, 2019 @ 2:41pm
      Sep 19, 2019

      Local Badges

      • By brenthillier NSMBA TRAILFORKS Plus & contributors
      • Admins: CAMTB, ericfoltz, jpmcghee, brianpetry, sanfret
      • #7921 - 1,697 views
      • alameda county activity log | embed map of Alameda County mountain bike trails | alameda county mountain biking points of interest
      • subscribe 3d map donate to earn trail karma!

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