USFS National Forest System Trails · Hiawatha National Forest · Michigan · Updated June 2026
Gros Cap Bine (Grouse) Loop (USFS trail 518B) is a 0.7 mi trail in Hiawatha National Forest, Michigan. Mountain bikes are designated as allowed, Jun–Nov, with no Class 1 e-bike designation on record.
Can I bike Gros Cap Bine (Grouse) Loop?
| 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 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
Gros Cap Bine (Grouse) Loop (USFS trail 518B) runs 0.7 mi through Hiawatha National Forest in Michigan. 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. The tread is mapped as native material. Based on slope, this is a Easy trail (grade band 5-8%); that reflects gentle gradient and is not the same as a technical MTB difficulty rating. Bike use is designated as allowed, typically Jun–Nov. 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. 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 Gros Cap Bine (Grouse) Loop?
- Yes. Mountain bikes are designated as allowed on Gros Cap Bine (Grouse) Loop in Hiawatha National Forest, typically Jun–Nov, per USFS data.
- Are e-bikes allowed on Gros Cap Bine (Grouse) Loop?
- No e-bike class (1, 2 or 3) is designated on Gros Cap Bine (Grouse) Loop in the USFS data.
- How long is Gros Cap Bine (Grouse) Loop?
- Gros Cap Bine (Grouse) Loop measures about 0.7 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Gros Cap Bine (Grouse) Loop?
- USFS data records the tread surface of Gros Cap Bine (Grouse) Loop as native material.
- How difficult is Gros Cap Bine (Grouse) Loop?
- 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 Hiawatha National Forest (USFS trail geometry isn't mapped).
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