USFS National Forest System Trails · Grand Mesa, Uncompahgre and Gunnison National Forests · Colorado · Updated June 2026
Delta-Nucla Snowmobile (USFS trail SNO-5503) is a 16.2 mi trail in Grand Mesa, Uncompahgre and Gunnison National Forests, Colorado. Mountain bikes are designated as allowed, Jan–Mar, December, with no Class 1 e-bike designation on record.
Can I bike Delta-Nucla Snowmobile?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | Jan–Mar, December |
| Class 1 e-bike (pedal-assist, 20 mph) | — | |
| Class 2 e-bike (throttle, 20 mph) | — | |
| Class 3 e-bike (pedal-assist, 28 mph) | — |
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
Delta-Nucla Snowmobile (USFS trail SNO-5503) is a 16.2 mi trail in Grand Mesa, Uncompahgre and Gunnison National Forests, Colorado. The figures here are pulled from the official US Forest Service trail data for Grand Mesa, Uncompahgre and Gunnison National Forests, covering the trail's mileage, tread, grade band, and the bike and e-bike uses the agency lists as designated. Underfoot, the trail is recorded as snow. USFS slope data puts it in the Advanced band (grade band 12-20%), meaning a steep climb — keep in mind this measures steepness, not trail technicality. Mountain bikes are allowed, with a Jan–Mar, December season in the data. No e-bike class (1, 2 or 3) is designated on this trail in the USFS data, so treat it as a non-motorized route unless a posted order says otherwise. The route is mapped as USFS Trail Class 4 on the agency's 1-to-5 development scale, where 1 is the most primitive, minimally maintained tread and 5 is the most developed. For day-of certainty on closures or seasonal orders, check directly with the ranger district, since this reflects the USFS data as of the latest refresh.
Frequently asked questions
- Can you mountain bike on Delta-Nucla Snowmobile?
- Yes. Mountain bikes are designated as allowed on Delta-Nucla Snowmobile in Grand Mesa, Uncompahgre and Gunnison National Forests, typically Jan–Mar, December, per USFS data.
- Are e-bikes allowed on Delta-Nucla Snowmobile?
- No e-bike class (1, 2 or 3) is designated on Delta-Nucla Snowmobile in the USFS data.
- How long is Delta-Nucla Snowmobile?
- Delta-Nucla Snowmobile measures about 16.2 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Delta-Nucla Snowmobile?
- USFS data records the tread surface of Delta-Nucla Snowmobile as snow.
- How difficult is Delta-Nucla Snowmobile?
- 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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