USFS National Forest System Trails · Monongahela National Forest · West Virginia · Updated June 2026
River Warmup North (USFS trail 432) is a 0.5 mi trail in Monongahela National Forest, West Virginia. Mountain bikes are designated as allowed, Apr–Oct, with no Class 1 e-bike designation on record.
Can I bike River Warmup North?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | Apr–Oct |
| Class 1 e-bike (pedal-assist, 20 mph) | — | |
| Class 2 e-bike (throttle, 20 mph) | — | |
| Class 3 e-bike (pedal-assist, 28 mph) | — |
Zooming out: across Monongahela National Forest, 100% of rideable trail miles are open to mountain bikes — a Bike Access Grade of B.
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About this trail
River Warmup North (USFS trail 432) is a 0.5 mi trail in Monongahela National Forest, West Virginia. This profile summarizes what the official US Forest Service trail record says about riding it: how long the trail is, what it's built on, how steep the route grades out, and which forms of bike use the agency has designated. Underfoot, the trail is recorded as native material. Based on slope, this is a Intermediate trail (grade band 10-12%); that reflects moderate gradient and is not the same as a technical MTB difficulty rating. Bike use is designated as allowed, typically Apr–Oct. 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 River Warmup North?
- Yes. Mountain bikes are designated as allowed on River Warmup North in Monongahela National Forest, typically Apr–Oct, per USFS data.
- Are e-bikes allowed on River Warmup North?
- No e-bike class (1, 2 or 3) is designated on River Warmup North in the USFS data.
- How long is River Warmup North?
- River Warmup North measures about 0.5 mi in total, summed across its mapped National Forest System segments.
- What is the surface of River Warmup North?
- USFS data records the tread surface of River Warmup North as native material.
- How difficult is River Warmup North?
- Its grade-based difficulty is Intermediate (grade band 10-12%), 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 Monongahela National Forest (USFS trail geometry isn't mapped).
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