USFS National Forest System Trails · Helena-Lewis and Clark National Forest · Montana · Updated June 2026
Long Coulee (USFS trail 319) is a 2.1 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 Long Coulee?
| 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 Helena-Lewis and Clark National Forest, 91% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
Watch Helena-Lewis and Clark National Forest for access changes
Email me when USFS mountain-bike or e-bike designations change for trails in Helena-Lewis and Clark National Forest. Free, unsubscribe anytime.
About this trail
In Helena-Lewis and Clark National Forest, Montana, Long Coulee (USFS trail 319) covers 2.1 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. The tread is mapped 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 — 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 Long Coulee?
- Mountain-bike use on Long Coulee 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 Long Coulee?
- Class 1, Class 2, Class 3 e-bikes are designated on Long Coulee in the USFS data.
- How long is Long Coulee?
- Long Coulee measures about 2.1 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Long Coulee?
- USFS data records the tread surface of Long Coulee 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).
Where to stay near Helena-Lewis and Clark National Forest
Find hotels, cabins, and vacation rentals near Helena-Lewis and Clark National Forest — plan your ride.
Top-rated places to stay near Helena-Lewis and Clark 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 Helena-Lewis and Clark National Forest?
Trail-access updates and trip ideas by email.