USFS National Forest System Trails · Ottawa National Forest · Michigan · Updated June 2026
Nfst-3663 (USFS trail T3663) is a 2.3 mi trail in Ottawa National Forest, Michigan. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike Nfst-3663?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Accepted but discouraged | — |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | Jan–Mar, May–Dec |
| Class 2 e-bike (throttle, 20 mph) | Allowed | Jan–Mar, May–Dec |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | Jan–Mar, May–Dec |
Zooming out: across Ottawa National Forest, 8% of rideable trail miles are open to mountain bikes — a Bike Access Grade of F.
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About this trail
Nfst-3663 (USFS trail T3663) is a 2.3 mi trail in Ottawa National Forest, 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. Underfoot, the trail is recorded as native 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. Note that mountain-bike use here is discouraged in USFS records — confirm with the ranger district before riding. On the electric side, Class 1, Class 2, Class 3 e-bikes are also designated (Jan–Mar, May–Dec) — 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 Nfst-3663?
- Mountain-bike use on Nfst-3663 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 Nfst-3663?
- Class 1, Class 2, Class 3 e-bikes are designated on Nfst-3663 in the USFS data.
- How long is Nfst-3663?
- Nfst-3663 measures about 2.3 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Nfst-3663?
- USFS data records the tread surface of Nfst-3663 as native material.
- How difficult is Nfst-3663?
- 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 Ottawa National Forest (USFS trail geometry isn't mapped).
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