USFS National Forest System Trails · Black Hills National Forest · South Dakota · Updated June 2026
Beaver Creek Porcupine (USFS trail 111A) is a 1.1 mi trail in Black Hills National Forest, South Dakota. Mountain bikes are designated as allowed, Apr–Nov, with no Class 1 e-bike designation on record.
Can I bike Beaver Creek Porcupine?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | Apr–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 Black Hills National Forest, 34% of rideable trail miles are open to mountain bikes — a Bike Access Grade of C.
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About this trail
In Black Hills National Forest, South Dakota, Beaver Creek Porcupine (USFS trail 111A) covers 1.1 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. Underfoot, the trail is recorded as native material. Its grade-based difficulty is Advanced (grade band 12-20%) — a steep steepness profile derived from USFS slope data, not a technical mountain-bike rating. Mountain bikes are allowed, with a Apr–Nov season in the data. 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. Treat this as a planning reference rather than a live conditions report, and verify any time-sensitive closure or order with the ranger district that manages Black Hills National Forest.
Frequently asked questions
- Can you mountain bike on Beaver Creek Porcupine?
- Yes. Mountain bikes are designated as allowed on Beaver Creek Porcupine in Black Hills National Forest, typically Apr–Nov, per USFS data.
- Are e-bikes allowed on Beaver Creek Porcupine?
- No e-bike class (1, 2 or 3) is designated on Beaver Creek Porcupine in the USFS data.
- How long is Beaver Creek Porcupine?
- Beaver Creek Porcupine measures about 1.1 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Beaver Creek Porcupine?
- USFS data records the tread surface of Beaver Creek Porcupine as native material.
- How difficult is Beaver Creek Porcupine?
- 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 Black Hills National Forest (USFS trail geometry isn't mapped).
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