USFS National Forest System Trails · Pike and San Isabel National Forests · Colorado · Updated June 2026
Crooked Beaver (USFS trail 747) is a 1.6 mi trail in Pike and San Isabel National Forests, Colorado. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike Crooked Beaver?
| 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 Pike and San Isabel National Forests, 51% of rideable trail miles are open to mountain bikes — a Bike Access Grade of B.
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About this trail
Crooked Beaver (USFS trail 747) runs 1.6 mi through Pike and San Isabel National Forests in Colorado. 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. Based on slope, this is a Easy trail (grade band +5-8%); that reflects gentle gradient and is not the same as a technical MTB difficulty rating. Mountain bikes are allowed, open year-round in the data. 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 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 Crooked Beaver?
- Yes. Mountain bikes are designated as allowed on Crooked Beaver in Pike and San Isabel National Forests, year-round, per USFS data.
- Are e-bikes allowed on Crooked Beaver?
- No e-bike class (1, 2 or 3) is designated on Crooked Beaver in the USFS data.
- How long is Crooked Beaver?
- Crooked Beaver measures about 1.6 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Crooked Beaver?
- USFS data records the tread surface of Crooked Beaver as native material.
- How difficult is Crooked Beaver?
- Its grade-based difficulty is Easy (grade band +5-8%), 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 Pike and San Isabel National Forests (USFS trail geometry isn't mapped).
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