USFS National Forest System Trails · Prescott National Forest · Arizona · Updated June 2026
One O Five A (USFS trail 0105A) is a 0.7 mi trail in Prescott National Forest, Arizona. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike One O Five A?
| 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 Prescott National Forest, 85% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
In Prescott National Forest, Arizona, One O Five A (USFS trail 0105A) covers 0.7 mi of National Forest System trail. 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. The tread is mapped as native material. Based on slope, this is a Advanced trail (grade band 12-20%); that reflects steep gradient and is not the same as a technical MTB difficulty rating. Bike use is designated as allowed year-round. 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 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. Treat this as a planning reference rather than a live conditions report, and verify any time-sensitive closure or order with the ranger district that manages Prescott National Forest.
Frequently asked questions
- Can you mountain bike on One O Five A?
- Yes. Mountain bikes are designated as allowed on One O Five A in Prescott National Forest, year-round, per USFS data.
- Are e-bikes allowed on One O Five A?
- No e-bike class (1, 2 or 3) is designated on One O Five A in the USFS data.
- How long is One O Five A?
- One O Five A measures about 0.7 mi in total, summed across its mapped National Forest System segments.
- What is the surface of One O Five A?
- USFS data records the tread surface of One O Five A as native material.
- How difficult is One O Five A?
- 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 Prescott National Forest (USFS trail geometry isn't mapped).
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