USFS National Forest System Trails · Sawtooth National Forest · Idaho · Updated June 2026
Skyline (USFS trail 7327) is a 12.7 mi trail in Sawtooth National Forest, Idaho. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike Skyline?
| 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 Sawtooth National Forest, 59% of rideable trail miles are open to mountain bikes — a Bike Access Grade of B.
Watch Sawtooth National Forest for access changes
Email me when USFS mountain-bike or e-bike designations change for trails in Sawtooth National Forest. Free, unsubscribe anytime.
About this trail
In Sawtooth National Forest, Idaho, Skyline (USFS trail 7327) covers 12.7 mi of National Forest System trail. The figures here are pulled from the official US Forest Service trail data for Sawtooth National Forest, covering the trail's mileage, tread, grade band, and the bike and e-bike uses the agency lists as designated. The tread is mapped 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. 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 (May–Nov) — 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 2 on the agency's 1-to-5 development scale, where 1 is the most primitive, minimally maintained tread and 5 is the most developed. Treat this as a planning reference rather than a live conditions report, and verify any time-sensitive closure or order with the ranger district that manages Sawtooth National Forest.
Frequently asked questions
- Can you mountain bike on Skyline?
- Mountain-bike use on Skyline 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 Skyline?
- Class 1, Class 2, Class 3 e-bikes are designated on Skyline in the USFS data.
- How long is Skyline?
- Skyline measures about 12.7 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Skyline?
- USFS data records the tread surface of Skyline as native material.
- How difficult is Skyline?
- 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).
Where to stay near Sawtooth National Forest
Find hotels, cabins, and vacation rentals near Sawtooth National Forest — plan your ride.
Top-rated places to stay near Sawtooth 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 Sawtooth National Forest?
Trail-access updates and trip ideas by email.
More trails in Sawtooth National Forest
21.6 mi · Advanced grade
20.8 mi · Advanced grade
18.6 mi · Advanced grade
16.7 mi · Advanced grade
15 mi · Advanced grade
14.5 mi · Advanced grade