USFS National Forest System Trails · Superior National Forest · Minnesota · Updated June 2026
Cascade Loop (USFS trail 21033) is a 20 mi trail in Superior National Forest, Minnesota. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike Cascade Loop?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | year-round |
| 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 Superior National Forest, 22% of rideable trail miles are open to mountain bikes — a Bike Access Grade of D.
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About this trail
Cascade Loop (USFS trail 21033) runs 20 mi through Superior National Forest in Minnesota. The figures here are pulled from the official US Forest Service trail data for Superior 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 Intermediate trail (grade band +10-12%); that reflects moderate gradient and is not the same as a technical MTB difficulty rating. Bike use is designated as allowed year-round. 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 Superior National Forest.
Frequently asked questions
- Can you mountain bike on Cascade Loop?
- Yes. Mountain bikes are designated as allowed on Cascade Loop in Superior National Forest, year-round, per USFS data.
- Are e-bikes allowed on Cascade Loop?
- No e-bike class (1, 2 or 3) is designated on Cascade Loop in the USFS data.
- How long is Cascade Loop?
- Cascade Loop measures about 20 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Cascade Loop?
- USFS data records the tread surface of Cascade Loop as native material.
- How difficult is Cascade Loop?
- 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 Superior National Forest (USFS trail geometry isn't mapped).
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