USFS National Forest System Trails · Tongass National Forest · Alaska · Updated June 2026
East Rio Beaver Spur 3012180 (USFS trail 543012180) is a 2.1 mi trail in Tongass National Forest, Alaska. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike East Rio Beaver Spur 3012180?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Accepted but discouraged | — |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | year-round |
| Class 2 e-bike (throttle, 20 mph) | Allowed | year-round |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | year-round |
Zooming out: across Tongass National Forest, 0% of rideable trail miles are open to mountain bikes — a Bike Access Grade of F.
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About this trail
East Rio Beaver Spur 3012180 (USFS trail 543012180) is a 2.1 mi trail in Tongass National Forest, Alaska. The figures here are pulled from the official US Forest Service trail data for Tongass 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 imported loose material. USFS slope data puts it in the Advanced band (grade band +12-20%), meaning a steep climb — keep in mind this measures steepness, not trail technicality. Note that mountain-bike use here is discouraged in USFS records — confirm with the ranger district before riding. The record additionally permits Class 1, Class 2, Class 3 e-bike use; 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 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 East Rio Beaver Spur 3012180?
- Mountain-bike use on East Rio Beaver Spur 3012180 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 East Rio Beaver Spur 3012180?
- Class 1, Class 2, Class 3 e-bikes are designated on East Rio Beaver Spur 3012180 in the USFS data.
- How long is East Rio Beaver Spur 3012180?
- East Rio Beaver Spur 3012180 measures about 2.1 mi in total, summed across its mapped National Forest System segments.
- What is the surface of East Rio Beaver Spur 3012180?
- USFS data records the tread surface of East Rio Beaver Spur 3012180 as imported loose material.
- How difficult is East Rio Beaver Spur 3012180?
- 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 Tongass National Forest (USFS trail geometry isn't mapped).
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