5.7 miles
Distance
10 ft
Climb
-1,731 ft
Descent
01:05:16
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 (3 votes)
  • Trail Type
    Singletrack
  • Bike Type
    AM, XC, Fat
  • Direction
    Both Directions
  • Climb Difficulty
    Double Black Diamond
  • Physical Rating
    Hard
  • Dogs Allowed
    Yes
  • eBike Allowed
  • TTFs on Trail
    Rock Garden
  • Global Ranking
    #47630 in Mountain Biking
  • Local Popularity
    80 in Mountain Biking [+]
    • 5 in Trail Running
    • 5 in Hiking
    • 5 in Snowshoeing
    • 5 in Skiing
  • Land Owner

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
    -1,722 ft
  • Altitude min
    8,753 ft
  • Altitude max
    10,476 ft
  • Altitude start
    10,475 ft
  • Altitude end
    8,753 ft
  • Grade
    -5.7%
  • Grade max
    -28.7%
  • Grade min
    4%
  • Distance climb
    807 ft
  • Distance down
    5 miles
  • Distance flat
    1,286 ft
  • Avg time
    01:05:16
  • Avg reverse time
    02:13:23
  • view trail stats
Status:
on Jun 18, 2024
Ideal
Avg: 4.05 (14 votes)
Your vote: 0

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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)
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  • > 96%
  • > 90%
  • > 80%
  • > 70%
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  • no data
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  • < 1 week
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The intended direction a trail should be ridden.
  • Downhill Only
  • Downhill Primary
  • Both Directions
  • Uphill Primary
  • Uphill Only
  • One Direction
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  • Description & Photos
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Trail Popularity ?
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Radar Time
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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
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      Directions to south-st-vrain trailhead (40.082070, -105.577930)
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      South St Vrain Trail Reports

      statusdatedescription
      Jun 18, 2024 @ 3:48pm
      Jun 18, 2024
      Lower 2.5mi to the P2P is dry and clear of deadfall. There still is a bigger downed tree near the bottom that is perfect closeline height.
      Jun 10, 2024 @ 11:48am
      Jun 10, 2024
      Snow covered upper ssv. unpassable. lower ssv clear of snow but covered in probably 20 downed trees.
      Feb 17, 2023 @ 6:04pm
      Feb 17, 2023
      Top a bit sketchy, rest running good but not all time.
      Jan 7, 2023 @ 4:58pm
      Jan 7, 2023
      Trail was Snowshoe between Waldrop and sourdough. should be rideable in downhill direction, might not be rideable uphill. from sourdough North the...
      Aug 8, 2022 @ 6:07am
      Aug 8, 2022
      view all reports »

      Recent Ridelog Activity on Trail

      Past Week
      • 2 rides
      • 32 miles avg distance
      6 Months
      • 2 rides
      • 32 miles avg distance
      All
      • 142 rides
      • Last: Jun 20, 2024

      Photos

      more »
      41 |
      Nov 8, 2023 @ 4:27pm
      Nov 8, 2023
      280 |
      Aug 9, 2021 @ 7:59pm
      Aug 9, 2021
      265 |
      Aug 9, 2021 @ 7:59pm
      Aug 9, 2021
      237 |
      Aug 9, 2021 @ 7:59pm
      Aug 9, 2021

      Trail Lists

      Routes with this trail

      more »
      titledistance
      South Saint Vrain - Figure 8 featured16 miles
      South St Vrain - Figure 8 and a Half28 miles
      South St Vrain Optimal Shuttle14 miles
      SSV Winter Figure 814 miles

      Trail Products

      2 Reviews & Comments


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      Videos

      more »
      youtuber Mountain Biking the Sourdough Trail
      5:04 | 988 | Jun 11, 2018 , Ward
      youtuber FAT Bike ❄️ | Brainard Lake | Trials and...
      12:55 | 361 | Mar 27, 2020 , Ward
      youtuber Shredding South St Vrain | Ward, CO
      660 | Jun 7, 2018 , Ward
      South St Vrain Trail - Mtn Bike
      1:29 | 212 | Nov 3, 2022 , Ward
      • By todd Trailforks & contributors
      • #13771 - 6,523 views

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