USFS National Forest System Trails · Helena-Lewis and Clark National Forest · Montana · Updated June 2026
Silver Gulch (USFS trail 402) is a 4.3 mi trail in Helena-Lewis and Clark National Forest, Montana. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike Silver Gulch?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Accepted but discouraged | — |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | Jan–Oct, December |
| Class 2 e-bike (throttle, 20 mph) | Allowed | Jan–Oct, December |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | Jan–Oct, December |
Zooming out: across Helena-Lewis and Clark National Forest, 91% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
In Helena-Lewis and Clark National Forest, Montana, Silver Gulch (USFS trail 402) covers 4.3 mi of National Forest System trail. The figures here are pulled from the official US Forest Service trail data for Helena-Lewis and Clark 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. For traditional mountain bikes, use is discouraged according to USFS data. On the electric side, Class 1, Class 2, Class 3 e-bikes are also designated (Jan–Oct, December) — Class 1 being pedal-assist only, Classes 2 and 3 adding a throttle and higher assisted speed. The route is mapped as USFS Trail Class 2 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 Helena-Lewis and Clark National Forest.
Frequently asked questions
- Can you mountain bike on Silver Gulch?
- Mountain-bike use on Silver Gulch is discouraged in USFS records, though Class 1 e-bike use is designated. Confirm current rules with the managing ranger district.
- Are e-bikes allowed on Silver Gulch?
- Class 1, Class 2, Class 3 e-bikes are designated on Silver Gulch in the USFS data.
- How long is Silver Gulch?
- Silver Gulch measures about 4.3 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Silver Gulch?
- USFS data records the tread surface of Silver Gulch 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 Helena-Lewis and Clark National Forest (USFS trail geometry isn't mapped).
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