Lostfork Basecamp
Mountain Biking business nearby (~34 mi away) — hasn't claimed their Roamze page yet
Free — you'll pick up right here.
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Colorado
0.8 mi
Distance
308 ft
Gain
8 min
Time
We won't guess. Here is exactly what we do and don't know.
What we do know
Inside Arapaho and Roosevelt National Forests
3 managing-area boundaries mapped — agency alerts for them feed this page automatically.
Boundary data
What's missing
No access route mapped
We don't yet know which road reaches this trailhead, so we can't tell you if it's gated.
Nobody's filed a report here yet — be the first.
Why you'll love it
Devils Thumb Bypass
AI-suggested draft · review before you go
Devils Thumb Bypass is a short but intriguing trail option in the Boulder area of Colorado, offering mountain bikers a quick escape into the foothills near 40.0°N 105.6°W. At just over 0.8 miles, this trail is perfect for riders looking to squeeze in a quick ride or use it as a connector within the local trail network. The bypass route provides an alternative path for those exploring the trails in this popular Colorado mountain biking region.
No permit or access details on file for this trail — check with the local land manager before you go.

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Lostfork Basecamp
Mountain Biking business nearby (~34 mi away) — hasn't claimed their Roamze page yet