USFS National Forest System Trails · Sawtooth National Forest · Idaho · Updated June 2026
Electric/Mud Spr (USFS trail 7845) is a 1.7 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 Electric/Mud Spr?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | year-round |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | May–Sep |
| Class 2 e-bike (throttle, 20 mph) | Allowed | May–Sep |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | May–Sep |
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
In Sawtooth National Forest, Idaho, Electric/Mud Spr (USFS trail 7845) covers 1.7 mi of National Forest System trail. This profile summarizes what the official US Forest Service trail record says about riding it: how long the trail is, what it's built on, how steep the route grades out, and which forms of bike use the agency has designated. The tread is mapped as native material. Its grade-based difficulty is Easy (grade band 5-8%) — a gentle steepness profile derived from USFS slope data, not a technical mountain-bike rating. Bike use is designated as allowed year-round. On the electric side, Class 1, Class 2, Class 3 e-bikes are also designated (May–Sep) — 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 Electric/Mud Spr?
- Yes. Mountain bikes are designated as allowed on Electric/Mud Spr in Sawtooth National Forest, year-round, per USFS data.
- Are e-bikes allowed on Electric/Mud Spr?
- Class 1, Class 2, Class 3 e-bikes are designated on Electric/Mud Spr in the USFS data.
- How long is Electric/Mud Spr?
- Electric/Mud Spr measures about 1.7 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Electric/Mud Spr?
- USFS data records the tread surface of Electric/Mud Spr as native material.
- How difficult is Electric/Mud Spr?
- 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).
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