South Saint Vrain

4.50 out of 5
View Topo Map


↑ 2,700 ft
↓ 3,200 ft
elevation (ft)

Trail Description
About this trail
This is a very fun trail, VERY rocky/technical at times both up and downhill.
If you don't like rocks, avoid this trail!
If you enjoy a technical challenge, do it!

These directions are for the route I took and what the Falcon Guide told me to do(not copied straight from the book), riding this trail backwords from this description should be a good ride too.

From the trailhead on 96:
Continue along South St Vrain creek down trail 909, through some very technical/steep climbing, some of it I'm pretty sure you'll have to walk too.
Eventually you'll hit a road that goes straight and to the left,
Don't go left over the river, go straight up the road.
Theres a short uphill on the kinda rocky road.
The road flatens out and you'll see a gate and just BEFORE that gate
a trail going STEEP up to the right. The trail is marked with an arrow, no trail name.
Carry your bike up this trail, not to worry theres not much hiking here. Everything past this is ridable, shouldn't have to walk your bike anymore for the rest of the ride.
At the next trail juntion, which isn't marked with signs,
continue towards the left down a rocky trail.
At the next junction, you'll see a sign for Sourdough trail 835 going right.
Take Sourdough 835. From here there are a few more trail
junctions, just follow the signs to stay on 835.
After a lot of fun rocky sections of both up and downhill, and
some nice views, after a while you'll hit a wide open area with a big trailhead sign with a map and everything. You can follow the dirt road back downhill to where you started, there's only one intersection you veer right on.
OR instead of going down the dirt road, I think you can keep
going straight across the dirt road for another mile to a
dirt road that will also take you back where you started,
double check the map at this point to be sure.

There are various trails along the way and plenty of areas
to explore, and can be linked up with other tails like Souerdough to
the south, so good luck and enjoy. A detailed map of the area or the Falcon Guides mountain biking book would be good to have with you.
added by JohnsXCbikeTrailblazer
Trail Features
Trail features
  • Lift Service
  • Drinking Water
  •   Night Riding
  • Pump Track
  • Restrooms
  • Winter Fat Biking
Directions to Trailhead
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Trail Q&A
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Local Info & Nearby Trails
Trail Check-ins
Trail Check-ins
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Recent Trail Check-ins     (32 total check-ins)
  Subpar_Shredder   on Aug 24, 2019
  the_salaminzer   on Jul 25, 2019
  provin1327   on Jul 20, 2019
  Tr0gd0r   on Jul 13, 2019
  drtjumper2   on Mar 23, 2019
Photo & Video Gallery (12)
Trail Photos & Videos (12)
Reviews (8)


March 13, 2016
Review: Another great trail for the area! I remember riding this when I first moved to Colorado in 1994 and had a crappy old Trek... it killed me, but was a blast! It was definitely more fun once my skills improved and I had a better bike. It is a great place to bike, and hike, and sometimes hiking with your bike.

I did find that sometimes there were just too many cars in the lot and I'd avoid the crowds and go to less populated trails.

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Granny Gear

August 5, 2015
Review: Whoa! I love to battle & this trail is a good fight all the way through. Now I'm going to be bored riding any that flows.

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June 4, 2012
Review: My new favorite trail in the Front Range. Real technical, tons of rock gardens, a few super steep techie spots, all around awesome. Haven't been that technically challenged in a while. Did it once as a shuttle from Brainard Lake, then rode up to Beaver Res, down Sourdough, around Wapiti, and back down South St Vrain. Amazing trail!

Similar Trail: White Ranch, Sourdough

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September 19, 2010
John Fisch Epic  
Review: As a straight out-and back, this ride is about 12 miles. But there's no need to do that, or the Falcon Guide route either. There are a multitude of loop options; you can hook up with Sourdough, Waldrop, Little Raven, Coney Flats, Buchanan Pass, and a number of FS roads. Be adventurous and be creative. Be advised, however, no matter what route you choose, you will be faced with tough climbs, seemingly endless rock gardens, and you will hike your bike more than once.

Similar Trail: SSV is great, but Buchanan Pass is still my fave.

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August 27, 2010
Review: Road this today and enjoyed myself. Ya do need to be in good shape to get over all the rocks! I did the "backwards of the main listing. Found that if you do happen to miss road 96J (as I did) and arrive at the lake turn around and look carefully on the right hand side you will find the trail and it will hook back up with the backwards directions. I am not sure which direction is better but it seems like the same section that are hard to go up would be hard to go down so...

Similar Trail: still too new to ridding in Colorado to suggest

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Granny Gear

August 15, 2010
fig171 Granny Gear  
Review: Park at the S St. Vrain trailhead ride up the rode to the first fork (96j on google maps) go left follow rode up about 1 mile you will see beaver bog trailhead on the sourdough trail. follow this about 4ish mile to the S St vrain trail and follow it down. when it dumps out onto a road go straight at the fork (DONT go over the bridge). Lower your seat and have fun on some really fun singletrack.

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May 2, 2010
Review: BTW this trail, like Sourdough, probably won't be ride-able until late June.

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August 31, 2009
Review: Well I just did this trail backwords, wasn't nearly as good. I had to climb what felt like most of the ride and had to cilmb up all kinds of rocky stuff that was very fun going the direction that I described above. So, I'd suggest going the way I described above, much funner that way I think. But hey if you want to get better at technical climbing, do it backwords(counter clockwise).. Also on the parts that weren't climbable going the original direction, going down them wasn't much easier, Very steep, definitely would need a freeride/downhill bike.* Review edited 8/31/2009* Review edited 5/1/2010

* Review edited 6/27/2010

Similar Trail: Sourdough

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South Saint Vrain MTB Trail 4.50 out of 5 based on 8 ratings. 8 user reviews.
Trail Conditions
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