USFS National Forest System Trails · George Washington and Jefferson National Forest · Virginia · Updated June 2026
Skulls Gap (USFS trail 4637) is a 1 mi trail in George Washington and Jefferson National Forest, Virginia. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike Skulls Gap?
| 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 George Washington and Jefferson National Forest, 90% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
In George Washington and Jefferson National Forest, Virginia, Skulls Gap (USFS trail 4637) covers 1 mi of National Forest System trail. The figures here are pulled from the official US Forest Service trail data for George Washington and Jefferson National Forest, covering the trail's mileage, tread, grade band, and the bike and e-bike uses the agency lists as designated. Underfoot, the trail is recorded 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. Mountain bikes are allowed, open year-round 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 Skulls Gap?
- Yes. Mountain bikes are designated as allowed on Skulls Gap in George Washington and Jefferson National Forest, year-round, per USFS data.
- Are e-bikes allowed on Skulls Gap?
- No e-bike class (1, 2 or 3) is designated on Skulls Gap in the USFS data.
- How long is Skulls Gap?
- Skulls Gap measures about 1 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Skulls Gap?
- USFS data records the tread surface of Skulls Gap as native material.
- How difficult is Skulls Gap?
- 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 George Washington and Jefferson National Forest (USFS trail geometry isn't mapped).
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