South Sourdough trail is near the the town of Nederland and is a more lightly traveled area than others. You'll start this ride at the trailhead a mile up County Road 116 off of the Peak or Peak highway.
BMA rates this ride as a intermediate-advanced. There's decent elevation gain and tons of rocks and roots. In the winter, this is a good fatbike ride, though about 3 miles in it's often unpacked and hard going. Then the closer you get to Brainard, the more travel and packed it becomes again.
This ride takes you 6 miles to the Brainard Lake area, then flip your bike around and pedal back to where you started. If you need more miles, there are lots of trails starting at Brainard, including the rest of Sourdough that runs all the way to Camp Dick.
Local Trail Association
Boulder Mountainbike Alliance (bouldermountainbike.org)Trail Products
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Boulder Area Trails AppPhone App
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Details
- Featured
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Riding area
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Primary ActivityMountain Bike
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Other Activities
- Horse
- Hike
- Trail Running
- Snowshoe
- Nordic Ski
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Difficulty ratingBlack Diamond
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Route TypeOut & Back
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eBike Allowed
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DirectionBoth Directions
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Physical ratingHard
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Ridelogs
More Stats for South Sourdough Out-n-Back mountain bike route
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Avg time1 hr 59 min
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Altitude min9,236 ft
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Altitude start9,236 ft
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Altitude end9,272 ft
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Grade0.1%
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Grade max-34.6%
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Grade min20.4%
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Distance climb5 miles
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Distance down5 miles
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Distance flat912 ft
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
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
- < 2 days
- < 1 week
- < 2 weeks
- < 1 month
- < 6 months
- > 6 months
- Downhill Only
- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
- Description
- Photos
- Description & Photos
- Videos
- most popular
- popular
- less popular
- not popular
- mountain biking recent
- mountain biking (>6 month)
- hiking (1 year)
- moto (1 year)
- Downhill Ski
- Backcountry Ski
- Nordic Ski
- Snowmobile
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BMA & contributors
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