USFS National Forest System Trails · Medicine Bow-Routt National Forest · Colorado · Updated June 2026
Devils Pass (USFS trail 610) is a 4.4 mi trail in Medicine Bow-Routt National Forest, Colorado. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike Devils Pass?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Accepted but discouraged | — |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | year-round |
| Class 2 e-bike (throttle, 20 mph) | Allowed | year-round |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | year-round |
Zooming out: across Medicine Bow-Routt National Forest, 14% of rideable trail miles are open to mountain bikes — a Bike Access Grade of D.
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About this trail
Devils Pass (USFS trail 610) runs 4.4 mi through Medicine Bow-Routt National Forest in Colorado. This profile summarizes what the official US Forest Service trail record says about riding it: how long the trail is, what it's built on, how steep the route grades out, and which forms of bike use the agency has designated. USFS records list its surface as imported loose material. Based on slope, this is a Intermediate trail (grade band 8-10%); that reflects moderate gradient and is not the same as a technical MTB difficulty rating. For traditional mountain bikes, use is discouraged according to USFS data. On the electric side, Class 1, Class 2, Class 3 e-bikes are also designated — Class 1 being pedal-assist only, Classes 2 and 3 adding a throttle and higher assisted speed. The route is mapped as USFS Trail Class 3 on the agency's 1-to-5 development scale, where 1 is the most primitive, minimally maintained tread and 5 is the most developed. Because conditions, closures, and local orders change between data refreshes, confirm the current status with the managing ranger district before you ride.
Frequently asked questions
- Can you mountain bike on Devils Pass?
- Mountain-bike use on Devils Pass is discouraged in USFS records, though Class 1 e-bike use is designated. Confirm current rules with the managing ranger district.
- Are e-bikes allowed on Devils Pass?
- Class 1, Class 2, Class 3 e-bikes are designated on Devils Pass in the USFS data.
- How long is Devils Pass?
- Devils Pass measures about 4.4 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Devils Pass?
- USFS data records the tread surface of Devils Pass as imported loose material.
- How difficult is Devils Pass?
- Its grade-based difficulty is Intermediate (grade band 8-10%), derived from USFS slope data. This reflects steepness, not technical mountain-bike difficulty.
How we read this data
Grade-based difficulty above is the USFS grade (route steepness), not a technical mountain-bike rating — a gentle-grade trail can still be rocky or technical, and vice versa. Bike and e-bike status come verbatim from the USFS managed-use fields for this trail; we never infer access we can't cite. See our methodology for how the dataset is built and what each field means.
Where it is
Approximate location of Medicine Bow-Routt National Forest (USFS trail geometry isn't mapped).
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