USFS National Forest System Trails · Colville National Forest · Washington · Updated October 2026
Shrew Creek (USFS trail 321) is a 3.8 mi trail in Colville National Forest, Washington. Mountain bikes are designated as allowed year-round, with Class 1 e-bikes also designated.
- Trail length
- 3.8 mi
- Grade-based difficulty
- Advancedgrade band +12-20%
- Surface
- Native Material
- USFS trail class
- Class 31 primitive · 5 developed
Can I bike Shrew Creek?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | year-round |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | Jun–Nov |
| Class 2 e-bike (throttle, 20 mph) | Allowed | Jun–Nov |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | Jun–Nov |
This trail carries an accessibility designation in the USFS record.
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, Shrew Creek (USFS trail 321) covers 3.8 mi of National Forest System trail. 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 year-round. The record additionally permits Class 1, Class 2, Class 3 e-bike use, Jun–Nov; recall that Class 1 is pedal-assist, while Class 2 adds a throttle and Class 3 a higher cutoff speed. 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, and the record carries an accessibility designation for this trail. 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 Shrew Creek?
- Yes. Mountain bikes are designated as allowed on Shrew Creek in Colville National Forest, year-round, per USFS data.
- Are e-bikes allowed on Shrew Creek?
- Class 1, Class 2, Class 3 e-bikes are designated on Shrew Creek in the USFS data.
- How long is Shrew Creek?
- Shrew Creek measures about 3.8 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Shrew Creek?
- USFS data records the tread surface of Shrew Creek as native material.
- How difficult is Shrew Creek?
- 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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