USFS National Forest System Trails · Custer Gallatin National Forest · Montana · Updated June 2026
Windy Ridge (USFS trail 633) is a 4 mi trail in Custer Gallatin National Forest, Montana. Mountain bikes are designated as allowed, Jun–Oct, with no Class 1 e-bike designation on record.
Can I bike Windy Ridge?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | Jun–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 Custer Gallatin National Forest, 98% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
Windy Ridge (USFS trail 633) runs 4 mi through Custer Gallatin National Forest in Montana. The figures here are pulled from the official US Forest Service trail data for Custer Gallatin 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. No grade band is recorded, so a steepness-based difficulty isn't available for this trail. Bike use is designated as allowed, typically Jun–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 4 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 Custer Gallatin National Forest.
Frequently asked questions
- Can you mountain bike on Windy Ridge?
- Yes. Mountain bikes are designated as allowed on Windy Ridge in Custer Gallatin National Forest, typically Jun–Oct, per USFS data.
- Are e-bikes allowed on Windy Ridge?
- No e-bike class (1, 2 or 3) is designated on Windy Ridge in the USFS data.
- How long is Windy Ridge?
- Windy Ridge measures about 4 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Windy Ridge?
- USFS data records the tread surface of Windy Ridge as native material.
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 Custer Gallatin National Forest (USFS trail geometry isn't mapped).
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