USFS National Forest System Trails · Lolo National Forest · Montana · Updated June 2026
Blue Mtn Mc (Trhd To Atv) (USFS trail 6.03) is a 1.5 mi trail in Lolo National Forest, Montana. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike Blue Mtn Mc (Trhd To Atv)?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Accepted but discouraged | — |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | May–Nov |
| Class 2 e-bike (throttle, 20 mph) | Allowed | May–Nov |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | May–Nov |
Zooming out: across Lolo National Forest, 34% of rideable trail miles are open to mountain bikes — a Bike Access Grade of C.
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About this trail
Blue Mtn Mc (Trhd To Atv) (USFS trail 6.03) runs 1.5 mi through Lolo National Forest in Montana. 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. Its grade-based difficulty is Intermediate (grade band 10-12%) — a moderate steepness profile derived from USFS slope data, not a technical mountain-bike rating. For traditional mountain bikes, use is discouraged according to USFS data. The record additionally permits Class 1, Class 2, Class 3 e-bike use, May–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 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. 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 Blue Mtn Mc (Trhd To Atv)?
- Mountain-bike use on Blue Mtn Mc (Trhd To Atv) 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 Blue Mtn Mc (Trhd To Atv)?
- Class 1, Class 2, Class 3 e-bikes are designated on Blue Mtn Mc (Trhd To Atv) in the USFS data.
- How long is Blue Mtn Mc (Trhd To Atv)?
- Blue Mtn Mc (Trhd To Atv) measures about 1.5 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Blue Mtn Mc (Trhd To Atv)?
- USFS data records the tread surface of Blue Mtn Mc (Trhd To Atv) as native material.
- How difficult is Blue Mtn Mc (Trhd To Atv)?
- 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 Lolo National Forest (USFS trail geometry isn't mapped).
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