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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
Max Vehicle Width
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US Cell Coverage
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cell carrier legend

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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      No description for Altadena has been added yet! Login or register to submit one.
      Activities Click to view
      Region Details
      • 10
      • 3
      • 11
      • 11
      • 1

      Region Status
      Caution as of Jun 17, 2025
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      43
      Trails Mountain Bike
      36
      Trails E-Bike
      5
      Trails Horse
      13
      Trails Hike
      43
      Trails Trail Running
      43
      Trails Dirtbike/Moto
      3
      Trails ATV/ORV/OHV
      3
      Total Distance
      78 miles
      Total Descent
      12,842 ft
      Total Vertical
      7,018 ft
      Highest Trailhead
      7,953 ft
      Reports
      581
      Photos
      306
      Ridden Counter
      12,277
      Sub Regions

      Photos of Altadena Mountain Bike

      trail: Pines Trail
      3 |
      May 29, 2025 @ 11:38pm
      May 29, 2025
      trail: Pines Trail
      4 |
      May 29, 2025 @ 11:38pm
      May 29, 2025
      trail: Pines Trail
      1 |
      May 29, 2025 @ 11:38pm
      May 29, 2025
      trail: Pines Trail
      2 |
      May 29, 2025 @ 11:38pm
      May 29, 2025
      234 |
      Mar 25, 2018 @ 2:24pm
      Mar 25, 2018
      573 |
      Apr 18, 2016 @ 10:21am
      Apr 18, 2016
      trail: Ken Burton
      475 |
      Apr 18, 2016 @ 10:21am
      Apr 18, 2016
      trail: Ken Burton
      444 |
      Apr 18, 2016 @ 10:20am
      Apr 18, 2016

      Videos of Altadena Mountain Bike

      Night Ride Disaster
      0:25 | 148 | Jul 31, 2020
      San Gabes
      3:22 | 63 | Sep 15, 2019
      dusty crash onto face
      0:48 | 205 | Jul 10, 2019
      Couldn't hang on
      0:48 | | Jul 9, 2019
      lower sunset
      4:04 | 113 | Mar 28, 2019
      millard
      0:57 | 136 | Mar 22, 2019
      fern
      2:18 | 341 | Mar 16, 2019
      crash
      0:55 | 149 | Mar 16, 2019

      Current Trail Warnings

      statustraildateconditionuserinfo
      Lower Sunset Ridge
      Jun 15, 2025 @ 11:07am
      Jun 15, 2025
      		 DrypijysterOvergrown with sections washed out.

      Recent Trail Reports

      statustraildateconditioninfouser
      Brown Mountain Road
      Jun 17, 2025 @ 4:13pm
      Jun 17, 2025
      		 DryHDM94
      Fern Truck Trail
      Jun 16, 2025 @ 6:13am
      Jun 16, 2025
      		 Dry Ridden 6/13/2025: Although the trail has...marv73
      Lower Gabrielino Trail
      Jun 10, 2025 @ 5:49pm
      Jun 10, 2025
      		 DryHDM94
      Upper Gabrielino Trail
      Jun 10, 2025 @ 5:49pm
      Jun 10, 2025
      		 Drylittle overgrown in spots but good!HDM94
      Silver Moccasin Connector
      Jun 10, 2025 @ 4:53pm
      Jun 10, 2025
      		 DryHDM94
      Silver Moccasin Trail (Chilao to Charlton)
      Jun 10, 2025 @ 4:51pm
      Jun 10, 2025
      		 IdealHDM94
      Silver Moccasin Trail (Christian Camp to Chilao DH)
      Jun 10, 2025 @ 4:50pm
      Jun 10, 2025
      		 DryHDM94
      El Prieto Road
      Jun 9, 2025 @ 8:10pm
      Jun 9, 2025
      		 DryThis trail is still single track. It's a...kb6ooc
      El Prieto Trail
      Jun 9, 2025 @ 10:58am
      Jun 9, 2025
      		 DryE-Bike JamesAgepoguyiu
      Pines Trail
      May 29, 2025 @ 11:19pm
      May 29, 2025
      		 DryFuel reduction debris that littered the...ev-dog SDMBA

      Activity Feed

      usernameactiontypetitledate
      flikxriddenrouteactivity #75412550
      Jul 7, 2025 @ 12:51pm
      4 hours
      Goodfearriddentrailactivity #75359074
      Jul 6, 2025 @ 2:36pm
      1 day
      gatsonis15wishlistrouteactivity #75017211
      Jul 2, 2025 @ 6:00am
      Jul 2, 2025
      CarlosCsePgEwishlisttrailactivity #74932995
      Jun 30, 2025 @ 9:19pm
      Jun 30, 2025
      therealslimshakyriddentrailactivity #74551630
      Jun 25, 2025 @ 12:18pm
      Jun 25, 2025

      Recent Comments

      usernametypetitlecommentdate
      ev-dogtrailPines TrailThis trail rides better than World of...
      May 29, 2025 @ 11:34pm
      May 29, 2025
      ev-dogtrailWorld of Chaparral EastPines trail rides better than World of...
      May 29, 2025 @ 11:32pm
      May 29, 2025
      JeanAdonistrailRubio Canyonimpossible to complete. landslides destroyed...
      May 6, 2025 @ 4:40pm
      May 6, 2025
      therealslimshakytrailKen Burtonhas anybody ridden this trail since it was...
      Apr 11, 2025 @ 2:20pm
      Apr 11, 2025
      doublenickelsclubtrailLower Gabrielino TrailAbout mid way up the trail (with JPL on your...
      Feb 19, 2025 @ 10:58pm
      Feb 19, 2025

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike3667 miles11,791 ft24 miles5,066 ft
      		#876#483304580923,461
      E-Bike59 miles817 ft3 miles3,642 ft
      		237112,076
      Horse1327 miles2,710 ft9 miles6,654 ft
      		1302
      Hike4378 miles12,841 ft27 miles7,018 ft
      		#673#419558111,628
      Trail Running4378 miles12,841 ft27 miles7,018 ft
      		#676#4205811378
      Dirtbike/Moto36 miles679 ft2 miles830 ft
      		84
      ATV/ORV/OHV36 miles679 ft2 miles830 ft
      		84
      • By BlazeNawaY & contributors
      • Admins: CORBA
      • #9518 - 10,012 views

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