USFS National Forest System Trails · Allegheny National Forest · Pennsylvania · Updated June 2026
Muddy Fork Loop (USFS trail 85132A) is a 2.5 mi trail in Allegheny National Forest, Pennsylvania. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike Muddy Fork Loop?
| 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 Allegheny National Forest, 81% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
In Allegheny National Forest, Pennsylvania, Muddy Fork Loop (USFS trail 85132A) covers 2.5 mi of National Forest System trail. The figures here are pulled from the official US Forest Service trail data for Allegheny National Forest, covering the trail's mileage, tread, grade band, and the bike and e-bike uses the agency lists as designated. USFS records list its surface as native material. No grade band is recorded, so a steepness-based difficulty isn't available for this trail. Mountain bikes are allowed, open year-round 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 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. 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 Muddy Fork Loop?
- Yes. Mountain bikes are designated as allowed on Muddy Fork Loop in Allegheny National Forest, year-round, per USFS data.
- Are e-bikes allowed on Muddy Fork Loop?
- No e-bike class (1, 2 or 3) is designated on Muddy Fork Loop in the USFS data.
- How long is Muddy Fork Loop?
- Muddy Fork Loop measures about 2.5 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Muddy Fork Loop?
- USFS data records the tread surface of Muddy Fork Loop as native material.
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 Allegheny National Forest (USFS trail geometry isn't mapped).
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