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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
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
Max Vehicle Width
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Radar Time
      No description for Altadena has been added yet! Login or register to submit one.
      Activities Click to view
      Region Details
      • 9
      • 4
      • 12
      • 17
      • 2

      Region Status
      Caution as of Jun 12, 2021

      Stats

      Avg Trail Rating
      Trails (view details)
      46
      Trails Mountain Bike
      44
      Trails E-Bike
      1
      Trails Hike
      46
      Trails Trail Running
      46
      Trails Horse
      12
      Total Distance
      149 miles
      Total Descent
      51,066 ft
      Total Vertical
      5,391 ft
      Highest Trailhead
      6,425 ft
      Reports
      485
      Photos
      354
      Ridden Counter
      7,398
      Sub Regions

      Photos of Altadena Mountain Bike

      trail: Sunset Ridge
      4 |
      May 30, 2021 @ 8:11pm
      May 30, 2021
      trail: Ken Burton
      16 |
      Apr 13, 2021 @ 9:03pm
      Apr 13, 2021
      6 |
      Apr 4, 2021 @ 11:34am
      Apr 4, 2021
      trail: Pentew
      17 |
      Apr 4, 2021 @ 11:33am
      Apr 4, 2021
      15 |
      Apr 1, 2021 @ 9:58am
      Apr 1, 2021
      16 |
      Apr 1, 2021 @ 9:17am
      Apr 1, 2021
      trail: Ken Burton
      340 |
      Apr 18, 2016 @ 10:21am
      Apr 18, 2016
      trail: Ken Burton
      285 |
      Apr 18, 2016 @ 10:20am
      Apr 18, 2016

      Videos of Altadena Mountain Bike

      Daughter combines MTB with gymnastics
      73 | Nov 19, 2020
      Night Ride Disaster
      0:25 | 88 | Jul 31, 2020
      Mt. Wilson Sunset Ridge - OFF CLIFF !?!
      0:32 | 148 | Feb 5, 2020
      San Gabes
      3:22 | 56 | Sep 15, 2019
      dusty crash onto face
      0:48 | 193 | Jul 10, 2019
      Couldn't hang on
      0:48 | | Jul 9, 2019
      lower sunset
      4:04 | 102 | Mar 28, 2019
      upper sunset
      3:43 | 99 | Mar 22, 2019

      Recent Trail Reports

      statustraildateconditionuserinfo
      Fern Truck Trail
      Jun 12, 2021 @ 8:39am
      Jun 12, 2021
      IdealvandallEbikes + bluetooth speakers = everyday fail.
      Ken Burton
      Jun 12, 2021 @ 8:39am
      Jun 12, 2021
      IdealvandallKen Burton is clean, (thank you)....
      Middle Sam Merrill
      Jun 12, 2021 @ 12:11am
      Jun 12, 2021
      Dryjansonwilliams
      Mt. Lowe East Trail
      Jun 12, 2021 @ 12:11am
      Jun 12, 2021
      Dryjansonwilliams
      Mt Lukens Road (3N27)
      Jun 9, 2021 @ 2:06pm
      Jun 9, 2021
      DryBikedreameater
      Upper Gabrelino Trail
      Jun 7, 2021 @ 11:04pm
      Jun 7, 2021
      Drythomasjkenney1024There are a couple of slides that are...
      Lower Gabrelino Trail
      Jun 7, 2021 @ 3:01pm
      Jun 7, 2021
      WetCarterJ8KLGcA little wet, but in some areas hero dirt.
      Sunset Ridge
      May 30, 2021 @ 8:12pm
      May 30, 2021
      IdealPaulz7DhF
      Strawberry Peak
      May 29, 2021 @ 5:45pm
      May 29, 2021
      DryEb2143No significant issues but you'll want...
      Josephine Peak Road
      May 29, 2021 @ 5:43pm
      May 29, 2021
      DryEb2143Previous bulldozer work now a nonfactor...

      Activity Feed

      usernameactiontypetitledate
      user #2715115JoshDabneyriddentrailEl Prieto Trail
      Jun 15, 2021 @ 11:13am
      Jun 15, 2021
      user #2735494TjnmtbwishlisttrailMt. Lowe East Trail
      Jun 13, 2021 @ 6:33pm
      Jun 13, 2021
      user #27416822evenfloriddentrailGabrielino Trail (NRT)
      Jun 13, 2021 @ 5:15pm
      Jun 13, 2021
      user #2054386BRamonwishlisttrailMt Wilson Trail (Bench to Base)
      Jun 13, 2021 @ 5:11pm
      Jun 13, 2021
      user #2053470CiclaValleyaddvideoGravel Guide: Mount Lowe Railway (4K)
      Jun 13, 2021 @ 4:16pm
      Jun 13, 2021

      Recent Comments

      usernametypetitlecommentdate
      user #2738719CarterJ8KLGctrailLower Gabrelino TrailSuper fun ride. Uphill has some sections where...
      Jun 7, 2021 @ 6:55pm
      Jun 7, 2021
      user #2626894Adrienpd8trailUpper Horse TrailA nice way to finish our descend all the way...
      May 8, 2021 @ 8:42pm
      May 8, 2021
      user #1672675HDM94reportZion Trailah fuck that sucks, thanks for the info
      May 1, 2021 @ 5:03pm
      May 1, 2021
      user #1045140derkderkallreportZion TrailThis has been closed since September. I...
      May 1, 2021 @ 4:09pm
      May 1, 2021
      user #1672675HDM94reportZion Trailany chance you've been back there since...
      May 1, 2021 @ 3:53pm
      May 1, 2021

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike44132 miles47,448 ft61 miles5,390 ft
      #391#2043544852012,455
      E-Bike18 miles1,539 ft5 miles1,490 ft
      356384
      Hike46149 miles51,066 ft69 miles5,390 ft
      #291#1704871352
      Trail Running46149 miles51,066 ft69 miles5,390 ft
      #292#171487147
      Horse1259 miles14,537 ft29 miles5,131 ft
      1922
      • By BlazeNawaY & contributors
      • Admins: CORBA, MWBA, LRCC, SDMBA
      • #9518 - 3,959 views

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