USFS National Forest System Trails · Flathead National Forest · Montana · Updated June 2026
Alpine 7 (USFS trail 7) is a 55.3 mi trail in Flathead National Forest, Montana. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike Alpine 7?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Accepted but discouraged | — |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | year-round |
| Class 2 e-bike (throttle, 20 mph) | Allowed | year-round |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | year-round |
Zooming out: across Flathead National Forest, 27% of rideable trail miles are open to mountain bikes — a Bike Access Grade of C.
Watch Flathead National Forest for access changes
Email me when USFS mountain-bike or e-bike designations change for trails in Flathead National Forest. Free, unsubscribe anytime.
About this trail
In Flathead National Forest, Montana, Alpine 7 (USFS trail 7) covers 55.3 mi of National Forest System trail. Everything below comes straight from the US Forest Service National Forest System Trails dataset — length, surface, slope-derived difficulty, and the specific bike and e-bike designations on record — so you can check legality before you load up. 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. 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 — 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 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. For day-of certainty on closures or seasonal orders, check directly with the ranger district, since this reflects the USFS data as of the latest refresh.
Frequently asked questions
- Can you mountain bike on Alpine 7?
- Mountain-bike use on Alpine 7 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 Alpine 7?
- Class 1, Class 2, Class 3 e-bikes are designated on Alpine 7 in the USFS data.
- How long is Alpine 7?
- Alpine 7 measures about 55.3 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Alpine 7?
- USFS data records the tread surface of Alpine 7 as native material.
- How difficult is Alpine 7?
- 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 Flathead National Forest (USFS trail geometry isn't mapped).
Where to stay near Flathead National Forest
Find hotels, cabins, and vacation rentals near Flathead National Forest — plan your ride.
Top-rated places to stay near Flathead National Forest
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Riding Flathead National Forest?
Trail-access updates and trip ideas by email.