Betasso Preserve trail photo
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Level: Intermediate
Length: 7 mi (11.3 km)
Surface: Singletrack
Configuration: Figure 8
Elevation: +270/ -222 ft
Total: 480 riders

Mountain Biking Betasso Preserve

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#104 of 1,368 mountain bike trails in Colorado
#728 in the world

Betasso is a quick smooth loop through forested hills, with plenty of tight turns and speedy downhill sections. The climbs and descents alternate enough to allow even a beginner to have a good time on this track. In some places the trail is cut right into the side of the mountain, so you are looking at a serious drop off if you're not paying attention. The trail has some nice views and is well maintained. The trail directions alternates monthly, so make sure you read the signs at the trailhead. Regardless of the trail direction, you will start off descending, and finish up climbing. There are two main (directional) loops: from the main parking lot you will start on the canyon loop, about halfway through, there is a connector trail that leads to the flowy, somewhat less technical, Benjamin loop.

Bikes are not allowed on this trail on Wednesdays and Saturdays.

First added by Rebus on Aug 26, 2005. Last updated May 10, 2020. → add an update
Before you go
  • Drinking water: unknown
  • Lift service: unknown
  • Night riding: unknown
  • Pump track: unknown
  • Restrooms: yes
  • Fat bike grooming: unknown
  • E-bikes allowed: unknown
  • Fee required: unknown
This trail information is user-generated. Help improve this information by suggesting a correction.
Getting there
From US36 in Boulder, go west on Canyon Rd approx 4 miles. Past the tunnel, turn right on Sugarloaf Rd. Go about a mile and turn right on Betasso Rd. The trailhead is about 1/2 mile or so on the left.

Betasso Preserve Trail map

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Local Info

Trail checkins

DanK_NoCo (on Sep 16, 2022)
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Upcoming Events

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Trail conditions

Tacky (on May 30, 2019)
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Camping & Lodging

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Betasso Preserve videos

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"Out There Guy" - Mountain biking…
Betasso Preserve, Boulder CO part 1
betasso descent
Betasso and new Fourmile Canyon connector,…
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Rider questions

Q: Is this trail open year round