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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Inadequate
  • 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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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
      • 55
      • 1
      • 4
      • 25
      • 24

      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      118
      Trails Mountain Bike
      109
      Trails E-Bike
      93
      Trails Horse
      94
      Trails Hike
      118
      Trails Trail Running
      118
      Trails Dirtbike/Moto
      81
      Trails Observed Trials
      6
      Trails ATV/ORV/OHV
      60
      Trails Snowmobile
      1
      Total Distance
      424 miles
      Total Descent
      71,425 ft
      Total Vertical
      6,410 ft
      Highest Trailhead
      8,727 ft
      Reports
      699
      Photos
      1,149
      Ridden Counter
      30,002

      Outside Logo Articles

      Video: Bradyn Lange Takes On The Downieville Classic
      Oct 30, 2023 from pinkbike.com
      After 7 years of chasing UCI points, Bradyn decided to head to Northern California for the legendary event.
      Video: Turning a Mining Town into a Mountain Biking Mecca in 'Dirt Magic'
      Sep 6, 2019 from pinkbike.com
      It all started with a van, a chainsaw, and a few maxed-out credit cards

      Popular Sierra County Mountain Biking Trails

      statustitledifficultyrating
      First Divide
      Downieville Trail Network
      Butcher Ranch Trail
      Downieville Trail Network
      Main St.
      Downieville Trail Network
      Third Divide
      Downieville Trail Network
      Sunrise Trail
      Downieville Trail Network
      Butcher Ranch Trail (Upper Section)
      Downieville Trail Network
      Pack Saddle Loop
      Downieville Trail Network
      Gold Valley Rim Trail
      Downieville Trail Network
      Pauley Creek Trail
      Downieville Trail Network
      Gold Valley OHV Trail (Rim to Pauley)
      Downieville Trail Network
      Pauley Creek OHV Trail (Doubletrack)
      Downieville Trail Network
      Second Divide
      Downieville Trail Network
      Butcher Ranch OHV Trail (South)
      Downieville Trail Network
      Big Boulder
      Downieville Trail Network
      Big Boulder (Doubletrack)
      Downieville Trail Network

      Sierra County Mountain Bike Routes

      titleratingdistance
      Downieville Downhill
      Downieville
      15 miles
      Halls Ranch-St Charles
      Forest City
      19 miles
      Downieville Tower to Town
      Downieville
      18 miles
      Gold Valley Beginner - pauley creek option
      Downieville
      22 miles
      Downieville Tower to Town
      Sierra City
      18 miles
      Downeville down
      Downieville
      16 miles
      Spencer Creek, via Packer saddle & Lavezzola Creek-
      Sierra County
      27 miles
      Tower-to-town_10-23-20
      Downieville
      20 miles
      Forest City Full Loop
      Forest City
      21 miles
      Gold Valley Rim-Pauley-2nd Divide Semi Epic
      Downieville
      20 miles

      Recent Ride Log Activity in Region

      Today
      • 0 rides
      Yesterday
      • 0 rides
      Past Week
      • 3 rides

      Photos of Sierra County Mountain Bike

      0 |
      Dec 8, 2023 @ 10:33am
      14 hours
      0 |
      Dec 8, 2023 @ 10:33am
      14 hours
      9 |
      Oct 22, 2023 @ 10:17am
      Oct 22, 2023
      4 |
      Oct 22, 2023 @ 10:17am
      Oct 22, 2023
      trail: Second Divide
      146 |
      Jul 26, 2019 @ 9:07pm
      Jul 26, 2019
      521 |
      Aug 14, 2016 @ 9:04pm
      Aug 14, 2016
      trail: Second Divide
      398 |
      Oct 7, 2013 @ 1:29pm
      Oct 7, 2013
      695 |
      Jun 25, 2013 @ 10:40am
      Jun 25, 2013
      | 2 comments

      Videos of Sierra County Mountain Bike

      Downieville Waterfall
      0:17 | 252 | Sep 13, 2019
      Attacked by Bees
      0:51 | 186 | Aug 16, 2019
      2018 Downie w titos
      29:19 | 133 | Jun 20, 2018
      Hardstyle @ Downieville
      1:35 | 154 | Oct 1, 2017
      Waterfall Line
      0:19 | 247 | Sep 16, 2016
      Nectar on Third
      0:15 | 118 | Sep 6, 2016
      downieville
      2:16 | 88 | Jul 3, 2016
      Two Days of Downieville
      1:58 | 207 | Jun 6, 2016

      Current Trail Warnings

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      rivetraceraddreportactivity #47065598
      Dec 8, 2023 @ 2:43pm
      10 hours
      rivetraceraddreportactivity #47065597 and 1 more
      Dec 8, 2023 @ 2:43pm
      10 hours
      rivetraceraddphotoactivity #47064341 and 1 more
      Dec 8, 2023 @ 10:33am
      14 hours
      rivetracerupdatetrailactivity #47064010 and 3 more
      Dec 8, 2023 @ 9:28am
      15 hours
      rivetraceraddreportactivity #47063948 and 84 more
      Dec 8, 2023 @ 9:15am
      15 hours

      Recent Comments

      usernametypetitlecommentdate
      loamchompsgheetrailSpencer Creek TrailThis thing is a chossy little jezebel; lake...
      Oct 19, 2023 @ 7:34pm
      Oct 19, 2023
      km27trailSecond DivideTerrible trail. Not a great alternative to 3rd...
      Oct 17, 2023 @ 12:28pm
      Oct 17, 2023
      Christopher8vQUfCtrailHilda Mine TrailIt's a trail alright.
      Sep 28, 2023 @ 7:30pm
      Sep 28, 2023
      joncartermdtrailButcher Ranch Trail (Upper Section)Butcher Ranch is the upper leg of the...
      Aug 28, 2023 @ 5:04am
      Aug 28, 2023
      JuanTonstrailGold Valley Rim Trail - UpperMint condition today
      Aug 20, 2023 @ 10:34pm
      Aug 20, 2023

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike109362 miles60,942 ft155 miles6,411 ft
      1,1066942310,813
      E-Bike93313 miles56,273 ft134 miles6,411 ft
      6625974
      Horse94310 miles52,398 ft132 miles6,368 ft
      27541
      Hike118424 miles71,424 ft184 miles6,411 ft
      376886405
      Trail Running118424 miles71,424 ft184 miles6,411 ft
      688640
      Dirtbike/Moto81263 miles42,385 ft106 miles6,368 ft
      1353251
      Observed Trials634 miles3,005 ft14 miles3,330 ft
      2312
      ATV/ORV/OHV60182 miles17,621 ft58 miles5,761 ft
      3240110
      Snowmobile19 miles860 ft6 miles846 ft
      1
      • By brenthillier NSMBA TRAILFORKS & contributors
      • Admins: CMBC, ericfoltz, Redhawk, jpmcghee, sanfret, brianpetry, maddy03, TheAngryTomato
      • #7909 - 4,708 views

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