USFS National Forest System Trails · Helena-Lewis and Clark National Forest · Montana · Updated June 2026
Deep Cr To Smith (USFS trail 311-A) is a 1.4 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 Deep Cr To Smith?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Accepted but discouraged | — |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | Jul–Nov |
| Class 2 e-bike (throttle, 20 mph) | Allowed | Jul–Nov |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | Jul–Nov |
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, Deep Cr To Smith (USFS trail 311-A) covers 1.4 mi of National Forest System trail. 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. USFS records list its surface 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. The record additionally permits Class 1, Class 2, Class 3 e-bike use, Jul–Nov; recall that Class 1 is pedal-assist, while Class 2 adds a throttle and Class 3 a higher cutoff speed. 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 Deep Cr To Smith?
- Mountain-bike use on Deep Cr To Smith 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 Deep Cr To Smith?
- Class 1, Class 2, Class 3 e-bikes are designated on Deep Cr To Smith in the USFS data.
- How long is Deep Cr To Smith?
- Deep Cr To Smith measures about 1.4 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Deep Cr To Smith?
- USFS data records the tread surface of Deep Cr To Smith 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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