USFS National Forest System Trails · Idaho Panhandle National Forests · Idaho · Updated June 2026
St. Joe Divide Nrt (USFS trail 16) is a 48.8 mi trail in Idaho Panhandle National Forests, Idaho. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike St. Joe Divide Nrt?
| 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 Idaho Panhandle National Forests, 6% of rideable trail miles are open to mountain bikes — a Bike Access Grade of F.
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About this trail
In Idaho Panhandle National Forests, Idaho, St. Joe Divide Nrt (USFS trail 16) covers 48.8 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. USFS slope data puts it in the Intermediate band (grade band 10-12%), meaning a moderate climb — keep in mind this measures steepness, not trail technicality. Note that mountain-bike use here is discouraged in USFS records — confirm with the ranger district before riding. The record additionally permits Class 1, Class 2, Class 3 e-bike use; 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 St. Joe Divide Nrt?
- Mountain-bike use on St. Joe Divide Nrt 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 St. Joe Divide Nrt?
- Class 1, Class 2, Class 3 e-bikes are designated on St. Joe Divide Nrt in the USFS data.
- How long is St. Joe Divide Nrt?
- St. Joe Divide Nrt measures about 48.8 mi in total, summed across its mapped National Forest System segments.
- What is the surface of St. Joe Divide Nrt?
- USFS data records the tread surface of St. Joe Divide Nrt as native material.
- How difficult is St. Joe Divide Nrt?
- 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 Idaho Panhandle National Forests (USFS trail geometry isn't mapped).
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