USFS National Forest System Trails · Stanislaus National Forest · California · Updated June 2026
Bear Trap Basin (USFS trail 17E27) is a 0.8 mi trail in Stanislaus National Forest, California. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike Bear Trap Basin?
| 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 Stanislaus National Forest, 84% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
Bear Trap Basin (USFS trail 17E27) runs 0.8 mi through Stanislaus National Forest in California. This profile summarizes what the official US Forest Service trail record says about riding it: how long the trail is, what it's built on, how steep the route grades out, and which forms of bike use the agency has designated. The tread is mapped 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. Bike use is designated as allowed year-round. The agency lists no Class 1, 2 or 3 e-bike designation here; absent a local order to the contrary, that means e-bikes are not an allowed use on this trail. The route is mapped as USFS Trail Class 2 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 Bear Trap Basin?
- Yes. Mountain bikes are designated as allowed on Bear Trap Basin in Stanislaus National Forest, year-round, per USFS data.
- Are e-bikes allowed on Bear Trap Basin?
- No e-bike class (1, 2 or 3) is designated on Bear Trap Basin in the USFS data.
- How long is Bear Trap Basin?
- Bear Trap Basin measures about 0.8 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Bear Trap Basin?
- USFS data records the tread surface of Bear Trap Basin as native material.
- How difficult is Bear Trap Basin?
- 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 Stanislaus National Forest (USFS trail geometry isn't mapped).
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