USFS National Forest System Trails · Sawtooth National Forest · Idaho · Updated June 2026
Horsefly Hill (USFS trail 7503) is a 0.6 mi trail in Sawtooth National Forest, Idaho. Mountain bikes are designated as allowed, Jun–Nov, with no Class 1 e-bike designation on record.
Can I bike Horsefly Hill?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | Jun–Nov |
| Class 1 e-bike (pedal-assist, 20 mph) | — | |
| Class 2 e-bike (throttle, 20 mph) | — | |
| Class 3 e-bike (pedal-assist, 28 mph) | — |
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
Horsefly Hill (USFS trail 7503) runs 0.6 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. Underfoot, the trail is recorded as native material. USFS slope data puts it in the Easy band (grade band 5-8%), meaning a gentle climb — keep in mind this measures steepness, not trail technicality. Mountain bikes are allowed, with a Jun–Nov season in the data. The agency lists no Class 1, 2 or 3 e-bike designation here; absent a local order to the contrary, that means e-bikes are not an allowed use on this trail. 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. 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 Horsefly Hill?
- Yes. Mountain bikes are designated as allowed on Horsefly Hill in Sawtooth National Forest, typically Jun–Nov, per USFS data.
- Are e-bikes allowed on Horsefly Hill?
- No e-bike class (1, 2 or 3) is designated on Horsefly Hill in the USFS data.
- How long is Horsefly Hill?
- Horsefly Hill measures about 0.6 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Horsefly Hill?
- USFS data records the tread surface of Horsefly Hill as native material.
- How difficult is Horsefly Hill?
- Its grade-based difficulty is Easy (grade band 5-8%), 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.