USFS National Forest System Trails · White Mountain National Forest · New Hampshire · Updated June 2026
Space Donkey (USFS trail 97623) is a 2 mi trail in White Mountain National Forest, New Hampshire. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike Space Donkey?
| 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 White Mountain National Forest, 19% of rideable trail miles are open to mountain bikes — a Bike Access Grade of D.
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About this trail
Space Donkey (USFS trail 97623) is a 2 mi trail in White Mountain National Forest, New Hampshire. The figures here are pulled from the official US Forest Service trail data for White Mountain National Forest, covering the trail's mileage, tread, grade band, and the bike and e-bike uses the agency lists as designated. Underfoot, the trail is recorded as native material. Based on slope, this is a Advanced trail (grade band 12-20%); that reflects steep gradient and is not the same as a technical MTB difficulty rating. Bike use is designated as allowed year-round. 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 Space Donkey?
- Yes. Mountain bikes are designated as allowed on Space Donkey in White Mountain National Forest, year-round, per USFS data.
- Are e-bikes allowed on Space Donkey?
- No e-bike class (1, 2 or 3) is designated on Space Donkey in the USFS data.
- How long is Space Donkey?
- Space Donkey measures about 2 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Space Donkey?
- USFS data records the tread surface of Space Donkey as native material.
- How difficult is Space Donkey?
- Its grade-based difficulty is Advanced (grade band 12-20%), 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 White Mountain National Forest (USFS trail geometry isn't mapped).
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