USFS National Forest System Trails · Hiawatha National Forest · Michigan · Updated June 2026
Haywire Grade Atv (USFS trail 9033) is a 20.3 mi trail in Hiawatha National Forest, Michigan. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike Haywire Grade Atv?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Accepted but discouraged | — |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | Apr–Nov |
| Class 2 e-bike (throttle, 20 mph) | Allowed | Apr–Nov |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | Apr–Nov |
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
In Hiawatha National Forest, Michigan, Haywire Grade Atv (USFS trail 9033) covers 20.3 mi of National Forest System trail. 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. USFS records list its surface as imported compacted material. Based on slope, this is a Easy trail (grade band 0-5%); that reflects gentle gradient and is not the same as a technical MTB difficulty rating. For traditional mountain bikes, use is discouraged according to USFS data. The record additionally permits Class 1, Class 2, Class 3 e-bike use, Apr–Nov; recall that Class 1 is pedal-assist, while Class 2 adds a throttle and Class 3 a higher cutoff speed. The route is mapped as USFS Trail Class 4 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 Haywire Grade Atv?
- Mountain-bike use on Haywire Grade Atv is discouraged in USFS records, though Class 1 e-bike use is designated. Confirm current rules with the managing ranger district.
- Are e-bikes allowed on Haywire Grade Atv?
- Class 1, Class 2, Class 3 e-bikes are designated on Haywire Grade Atv in the USFS data.
- How long is Haywire Grade Atv?
- Haywire Grade Atv measures about 20.3 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Haywire Grade Atv?
- USFS data records the tread surface of Haywire Grade Atv as imported compacted material.
- How difficult is Haywire Grade Atv?
- 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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