5.8 miles
Distance
33 ft
Climb
-1,723 ft
Descent
00:57:05
Avg time
Supporters, Builders, Maintainers & Land Managers of South St Vrain Trail

South St Vrain Details

  • Activities
    • Mountain Bike
    • Hike
    • Trail Running
    • Snowshoe
    • Nordic Ski
  • Riding Area
  • Ref Number
    #909
  • Difficulty Rating
  • Voted Difficulty
    Black Diamond (2 votes)
  • Trail Type
    Singletrack
  • Bike Type
    AM, XC, Fat
  • Trail Usage
    Multi-use
  • Direction
    Both Directions
  • Climb Difficulty
    Double Black Diamond
  • Physical Rating
    Hard
  • Dogs Allowed
    Yes
  • eBike Allowed
  • TTFs on Trail
    Rock Garden
  • Global Ranking
    #22035 in Mountain Biking
  • Local Popularity
    55 in Mountain Biking [+]
    • 5 in Trail Running
    • 5 in Hiking
    • 5 in Snowshoeing
    • 5 in Skiing
  • Land Manager

If you like techy rock riding you will love this trail, if not, you will hate it. Best ridden from the Brainard Lake area as a downhill but can be ridden from Peak to Peak if you enjoy steep technical climbing. This could also be done as a shuttle in a number of different ways. Probably the most technical "legal" trail in Boulder County.

This trail is also open to fat bikes in the winter.

Local Trail Association
Traditionally Indigenous Territory
More Stats for South St Vrain mountain bike trail trail
  • Altitude change
    -1,690 ft
  • Altitude min
    8,757 ft
  • Altitude max
    10,475 ft
  • Altitude start
    10,447 ft
  • Altitude end
    8,757 ft
  • Grade
    -5.5%
  • Grade max
    -28.7%
  • Grade min
    10.8%
  • Distance climb
    1,194 ft
  • Distance down
    5 miles
  • Distance flat
    912 ft
  • Avg time
    00:57:05
  • Avg reverse time
    00:52:13
  • view trail stats
Status:
on Jun 15, 2021
Snow Covered
Avg: 4.2 (11 votes)

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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
      Directions to south-st-vrain trailhead (40.081850, -105.578770)
      update trails status or condition

      South St Vrain Trail Reports

      statusdatedescription
      Jun 15, 2021 @ 8:57pm
      Jun 15, 2021
      There’s a few snowy sections and several downed trees the first miles or two. After that it’s dry and clear.
      Jun 13, 2021 @ 6:08am
      Jun 13, 2021
      Still too much snow from brainard lake. Rode from Waldrop down. Some snow, water, mud taking that route but dries out quickly as you head down.
      Jun 3, 2021 @ 5:25am
      Jun 3, 2021
      Upper section by Brainard Lake is significantly snow covered. The snow strarts to thin out where the trail intersects Sourdough, then is basically...
      May 25, 2021 @ 8:26am
      May 25, 2021
      Trails are open. Please update conditions if you ride.
      Mar 4, 2021 @ 8:05am
      Mar 4, 2021
      reporter Awesome from Walldrop intersection to Sourdough intersection. Recently snowshoe packed from Sourdough to bottom of staircase. Staircase to bottom...
      view all reports »

      Recent Ridelog Activity on Trail

      Past Week
      • 3 rides
      • 18 miles avg distance
      6 Months
      • 4 rides
      • 16 miles avg distance
      All
      • 90 rides
      •  

      Photos

      more »
      27 |
      Jan 10, 2021 @ 9:52pm
      Jan 10, 2021
      68 |
      Aug 19, 2019 @ 9:41pm
      Aug 19, 2019
      63 |
      Aug 19, 2019 @ 9:40pm
      Aug 19, 2019
      56 |
      Aug 19, 2019 @ 9:40pm
      Aug 19, 2019

      Trail Lists

      Routes with this trail

      titleratingdistance
      South St Vrain - Figure 8 and a Half
      28 miles
      South Saint Vrain - Figure 8 featured
      16 miles
      SSV Winter Figure 8
      14 miles

      Trail Products

      2 Reviews & Comments

      • + 1
      anthobroncos (Feb 24, 2019 at 9:35)
       There's only one short section of trail which qualifies as a double black. The rest is squarely a single black.

      Overall grade is low but steady. Lots and lots of rocks on the upper part. Watch for hikers on the weekends.
      [Reply]
      • + 0
      TSole12 (Oct 9, 2020 at 19:34)
       Most of the trail is a black diamond, some super technical sections which definitely qualify as a double black. Lots of fun if you like janky tech
      [Reply]

      Post a Comment



      Videos

      more »
      youtuber Mountain Biking the Sourdough Trail
      5:04 | 553 | Jun 11, 2018 , Ward
      youtuber FAT Bike | ❄️???? | Brainard Lake | Trials...
      12:55 | 143 | Mar 27, 2020 , Ward
      youtuber Shredding South St Vrain | Ward, CO
      414 | Jun 7, 2018 , Ward
      youtuber Vanlife, Dogs, and Backcountry Mountain...
      10:59 | 96 | Sep 6, 2020 , Ward
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