USFS National Forest System Trails · Hiawatha National Forest · Michigan · Updated June 2026
Grand Island Bike (USFS trail 306) is a 21 mi trail in Hiawatha National Forest, Michigan. Mountain bikes are designated as allowed, May–Oct, with no Class 1 e-bike designation on record.
Can I bike Grand Island Bike?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | May–Oct |
| 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 Hiawatha National Forest, 35% of rideable trail miles are open to mountain bikes — a Bike Access Grade of C.
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About this trail
Grand Island Bike (USFS trail 306) runs 21 mi through Hiawatha National Forest in Michigan. The figures here are pulled from the official US Forest Service trail data for Hiawatha 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 imported compacted material. Its grade-based difficulty is Easy (grade band 0-5%) — a gentle steepness profile derived from USFS slope data, not a technical mountain-bike rating. Bike use is designated as allowed, typically May–Oct. No e-bike class (1, 2 or 3) is designated on this trail in the USFS data, so treat it as a non-motorized route unless a posted order says otherwise. 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. Because conditions, closures, and local orders change between data refreshes, confirm the current status with the managing ranger district before you ride.
Frequently asked questions
- Can you mountain bike on Grand Island Bike?
- Yes. Mountain bikes are designated as allowed on Grand Island Bike in Hiawatha National Forest, typically May–Oct, per USFS data.
- Are e-bikes allowed on Grand Island Bike?
- No e-bike class (1, 2 or 3) is designated on Grand Island Bike in the USFS data.
- How long is Grand Island Bike?
- Grand Island Bike measures about 21 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Grand Island Bike?
- USFS data records the tread surface of Grand Island Bike as imported compacted material.
- How difficult is Grand Island Bike?
- Its grade-based difficulty is Easy (grade band 0-5%), 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 Hiawatha National Forest (USFS trail geometry isn't mapped).
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