Sourdough Trail (North)

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The northern half of the Sourdough Trail puts hair on your chest, or umm, makes your legs more shapely and beautiful if you're a chick and a hairy chest is undesirable.  Big fat glacial boulders, twisty turny trail, rocks everywhere, and really choice mossy forest -- how could it get any better?  If you're jonesing for some technical rock work, Sourdough North has you covered.  Combine this trail with the new no-longer-in-wilderness South St Vrain Trail right next to Brainard Lake.

Sourdough North provides a challenging ride both directions, really, although the vast majority of sane folks prefer to go south to north (largely downhill, as shown in the elevation profile below).  Starting from the Red Rocks Trailhead, the rocky challenge begins almost immediately.  After a punishing mile or so, you start to hear the St. Vrain Creek ahead in the forest.  Take a pause on this gorgeous bridge crossing of St. Vrain Creek - a great reminder of why the Colorado high country is so dang badass!

bridge across St. Vrain River

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Sourdough Trail (North) GPX File248.24 KB
Sourdough Trail (North) Google Earth File5.39 KB
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Sourdough Trail (North) Click on image to enlarge
Sourdough Trail (North) Click on image to enlarge

T: 7 A: 7 C: 8

Learn more about BMA Rating
3
Learn More About Trail Difficulty Ratings
7 mi.
390 ft.

Comments

Started at Dick and went a mile south on Sourdough. Approximately half dirt and half slushy packed snow.
Shouldn't be too long if weather stays warm.

From nl_photo via Twitter: Uhh yeah, gonna be awhile before Sourdough is ready for mtb action. Today near Brainard Lake. #boco_trails #snow http://t.co/mpebN3jFPM

On the snow bike the sourdough is great. Went with regular mtn bikes and the snow was too soft and slushy.

renewed winter conditions after a large snowstorm, trails probably need to be repacked. Please update when you ride!

mixed dry and snow

From redstonecyclery via Twitter: Beaver Res Rd/Sourdough/SSV loop tonight for Tuesday nighter was fantastic. The loop has a little snow but is in great shape! #boco_trails

From MorganLommele via Twitter: Does anyone know what condition Sourdough trails are in? #boco_trails

All trees cleared b/w Red Rocks and Beaver Res Road - good riding!

Still 3 downed trees, but rideable. Very dry. The monsoon rain that we got a week ago has washed out the south end of this trail a bit. Still very fun!

5 or 6 down trees, will probably be cleared soon.
Dry and dusty.

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