USFS National Forest System Trails · Grand Mesa, Uncompahgre and Gunnison National Forests · Colorado · Updated June 2026
Crystal Lake (USFS trail 9235) is a 10.5 mi trail in Grand Mesa, Uncompahgre and Gunnison National Forests, Colorado. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike Crystal Lake?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | year-round |
| Class 1 e-bike (pedal-assist, 20 mph) | Restricted | — |
| Class 2 e-bike (throttle, 20 mph) | Restricted | — |
| Class 3 e-bike (pedal-assist, 28 mph) | Restricted | — |
Zooming out: across Grand Mesa, Uncompahgre and Gunnison National Forests, 96% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
Crystal Lake (USFS trail 9235) is a 10.5 mi trail in Grand Mesa, Uncompahgre and Gunnison National Forests, 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 native material. Its grade-based difficulty is Advanced (grade band 12-20%) — a steep steepness profile derived from USFS slope data, not a technical mountain-bike rating. Mountain bikes are allowed, open year-round in the data. The agency lists no Class 1, 2 or 3 e-bike designation here; absent a local order to the contrary, that means e-bikes are not an allowed use on this trail. The route is mapped as USFS Trail Class 2 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 Crystal Lake?
- Yes. Mountain bikes are designated as allowed on Crystal Lake in Grand Mesa, Uncompahgre and Gunnison National Forests, year-round, per USFS data.
- Are e-bikes allowed on Crystal Lake?
- No e-bike class (1, 2 or 3) is designated on Crystal Lake in the USFS data.
- How long is Crystal Lake?
- Crystal Lake measures about 10.5 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Crystal Lake?
- USFS data records the tread surface of Crystal Lake as native material.
- How difficult is Crystal Lake?
- Its grade-based difficulty is Advanced (grade band 12-20%), 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 Grand Mesa, Uncompahgre and Gunnison National Forests (USFS trail geometry isn't mapped).
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