USFS National Forest System Trails · Colville National Forest · Washington · Updated June 2026
Geophysical (Rough Ridge) (USFS trail 332) is a 0.6 mi trail in Colville National Forest, Washington. Mountain bikes are designated as allowed, Apr–Oct, with no Class 1 e-bike designation on record.
Can I bike Geophysical (Rough Ridge)?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | Apr–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, 8% of rideable trail miles are open to mountain bikes — a Bike Access Grade of F.
Watch Colville National Forest for access changes
Email me when USFS mountain-bike or e-bike designations change for trails in Colville National Forest. Free, unsubscribe anytime.
About this trail
Geophysical (Rough Ridge) (USFS trail 332) runs 0.6 mi through Colville National Forest in 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. Its grade-based difficulty is Easy (grade band 5-8%) — a gentle steepness profile derived from USFS slope data, not a technical mountain-bike rating. Mountain bikes are allowed, with a Apr–Oct 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. 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 Geophysical (Rough Ridge)?
- Yes. Mountain bikes are designated as allowed on Geophysical (Rough Ridge) in Colville National Forest, typically Apr–Oct, per USFS data.
- Are e-bikes allowed on Geophysical (Rough Ridge)?
- No e-bike class (1, 2 or 3) is designated on Geophysical (Rough Ridge) in the USFS data.
- How long is Geophysical (Rough Ridge)?
- Geophysical (Rough Ridge) measures about 0.6 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Geophysical (Rough Ridge)?
- USFS data records the tread surface of Geophysical (Rough Ridge) as native material.
- How difficult is Geophysical (Rough Ridge)?
- Its grade-based difficulty is Easy (grade band 5-8%), 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).
Where to stay near Colville National Forest
Find hotels, cabins, and vacation rentals near Colville National Forest — plan your ride.
Top-rated places to stay near Colville National Forest
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Riding Colville National Forest?
Trail-access updates and trip ideas by email.