USFS National Forest System Trails · Sawtooth National Forest · Idaho · Updated June 2026
Skyline Trail (USFS trail 7513) is a 15 mi trail in Sawtooth National Forest, Idaho. Mountain bikes are designated as allowed year-round, with Class 1 e-bikes also designated.
Can I bike Skyline Trail?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | year-round |
| 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 Sawtooth National Forest, 59% of rideable trail miles are open to mountain bikes — a Bike Access Grade of B.
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About this trail
Skyline Trail (USFS trail 7513) runs 15 mi through Sawtooth National Forest in Idaho. 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. USFS records list its surface as native material. Based on slope, this is a Advanced trail (grade band 12-20%); that reflects steep gradient and is not the same as a technical MTB difficulty rating. Mountain bikes are allowed, open year-round in the 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 Skyline Trail?
- Yes. Mountain bikes are designated as allowed on Skyline Trail in Sawtooth National Forest, year-round, per USFS data.
- Are e-bikes allowed on Skyline Trail?
- Class 1, Class 2, Class 3 e-bikes are designated on Skyline Trail in the USFS data.
- How long is Skyline Trail?
- Skyline Trail measures about 15 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Skyline Trail?
- USFS data records the tread surface of Skyline Trail as native material.
- How difficult is Skyline Trail?
- 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 Sawtooth National Forest (USFS trail geometry isn't mapped).
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