USFS National Forest System Trails · Colville National Forest · Washington · Updated October 2026
Lake Leo (USFS trail 155) is a 2.2 mi trail in Colville National Forest, Washington. Mountain bikes are designated as allowed, Mar–Dec, with no Class 1 e-bike designation on record.
- Trail length
- 2.2 mi
- Grade-based difficulty
- Advancedgrade band +12-20%
- Surface
- Native Material
- USFS trail class
- Class 31 primitive · 5 developed
Can I bike Lake Leo?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | Mar–Dec |
| 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
Lake Leo (USFS trail 155) is a 2.2 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. 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. Mountain bikes are allowed, with a Mar–Dec 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 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 Lake Leo?
- Yes. Mountain bikes are designated as allowed on Lake Leo in Colville National Forest, typically Mar–Dec, per USFS data.
- Are e-bikes allowed on Lake Leo?
- No e-bike class (1, 2 or 3) is designated on Lake Leo in the USFS data.
- How long is Lake Leo?
- Lake Leo measures about 2.2 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Lake Leo?
- USFS data records the tread surface of Lake Leo as native material.
- How difficult is Lake Leo?
- 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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