USFS National Forest System Trails · Dixie National Forest · Utah · Updated June 2026
Mammoth Spring (USFS trail 32000.4.41) is a 2.7 mi trail in Dixie National Forest, Utah. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike Mammoth Spring?
| 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 Dixie National Forest, 13% of rideable trail miles are open to mountain bikes — a Bike Access Grade of D.
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About this trail
Mammoth Spring (USFS trail 32000.4.41) is a 2.7 mi trail in Dixie National Forest, Utah. The figures here are pulled from the official US Forest Service trail data for Dixie National Forest, covering the trail's mileage, tread, grade band, and the bike and e-bike uses the agency lists as designated. USFS records list its surface as native material. No grade band is recorded, so a steepness-based difficulty isn't available for this trail. Note that mountain-bike use here is discouraged in USFS records — confirm with the ranger district before riding. The record additionally permits Class 1, Class 2, Class 3 e-bike use; recall that Class 1 is pedal-assist, while Class 2 adds a throttle and Class 3 a higher cutoff speed. 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 Mammoth Spring?
- Mountain-bike use on Mammoth Spring 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 Mammoth Spring?
- Class 1, Class 2, Class 3 e-bikes are designated on Mammoth Spring in the USFS data.
- How long is Mammoth Spring?
- Mammoth Spring measures about 2.7 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Mammoth Spring?
- USFS data records the tread surface of Mammoth Spring as native material.
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 Dixie National Forest (USFS trail geometry isn't mapped).
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