USFS National Forest System Trails · Colville National Forest · Washington · Updated October 2026
Boundary (USFS trail 533) is a 73.9 mi trail in Colville National Forest, Washington. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
- Trail length
- 73.9 mi
- Grade-based difficulty
- Unknowngrade band +12-20%
- Surface
- Not recorded
- USFS trail class
- Class 31 primitive · 5 developed
Can I bike Boundary?
| 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 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
In Colville National Forest, Washington, Boundary (USFS trail 533) covers 73.9 mi of National Forest System trail. The figures here are pulled from the official US Forest Service trail data for Colville National Forest, covering the trail's mileage, tread, grade band, and the bike and e-bike uses the agency lists as designated. The trail surface is not specified in the USFS record. No grade band is recorded, so a steepness-based difficulty isn't available for this trail. 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 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. 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 Colville National Forest.
Frequently asked questions
- Can you mountain bike on Boundary?
- Yes. Mountain bikes are designated as allowed on Boundary in Colville National Forest, year-round, per USFS data.
- Are e-bikes allowed on Boundary?
- No e-bike class (1, 2 or 3) is designated on Boundary in the USFS data.
- How long is Boundary?
- Boundary measures about 73.9 mi in total, summed across its mapped National Forest System segments.
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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