USFS National Forest System Trails · Coronado National Forest · Arizona · Updated June 2026
Crystal Spring (USFS trail 17) is a 3.8 mi trail in Coronado National Forest, Arizona. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike Crystal Spring?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | year-round |
| 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 Coronado National Forest, 84% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
In Coronado National Forest, Arizona, Crystal Spring (USFS trail 17) covers 3.8 mi of National Forest System trail. The figures here are pulled from the official US Forest Service trail data for Coronado National Forest, 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 native 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. 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 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. 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 Crystal Spring?
- Yes. Mountain bikes are designated as allowed on Crystal Spring in Coronado National Forest, year-round, per USFS data.
- Are e-bikes allowed on Crystal Spring?
- No e-bike class (1, 2 or 3) is designated on Crystal Spring in the USFS data.
- How long is Crystal Spring?
- Crystal Spring measures about 3.8 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Crystal Spring?
- USFS data records the tread surface of Crystal Spring as native material.
- How difficult is Crystal Spring?
- 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 Coronado National Forest (USFS trail geometry isn't mapped).
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