USFS National Forest System Trails · Colville National Forest · Washington · Updated October 2026
10 Mile (USFS trail 25) is a 2.4 mi trail in Colville National Forest, Washington. Mountain bikes are designated as allowed, May–Oct, with no Class 1 e-bike designation on record.
- Trail length
- 2.4 mi
- Grade-based difficulty
- Advancedgrade band +12-20%
- Surface
- Native Material
- USFS trail class
- Class 31 primitive · 5 developed
Can I bike 10 Mile?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | May–Oct |
| 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 Colville National Forest, 64% of rideable trail miles are open to mountain bikes — a Bike Access Grade of B.
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About this trail
10 Mile (USFS trail 25) is a 2.4 mi trail in Colville National Forest, Washington. Everything below comes straight from the US Forest Service National Forest System Trails dataset — length, surface, slope-derived difficulty, and the specific bike and e-bike designations on record — so you can check legality before you load up. 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. Bike use is designated as allowed, typically May–Oct. 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. 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 10 Mile?
- Yes. Mountain bikes are designated as allowed on 10 Mile in Colville National Forest, typically May–Oct, per USFS data.
- Are e-bikes allowed on 10 Mile?
- No e-bike class (1, 2 or 3) is designated on 10 Mile in the USFS data.
- How long is 10 Mile?
- 10 Mile measures about 2.4 mi in total, summed across its mapped National Forest System segments.
- What is the surface of 10 Mile?
- USFS data records the tread surface of 10 Mile as native material.
- How difficult is 10 Mile?
- 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 Colville National Forest (USFS trail geometry isn't mapped).
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