USFS National Forest System Trails · White River National Forest · Colorado · Updated June 2026
Blue River (South) (USFS trail 606) is a 1.5 mi trail in White River National Forest, Colorado. Mountain bikes are designated as allowed, May–Nov, with no Class 1 e-bike designation on record.
Can I bike Blue River (South)?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | May–Nov |
| Class 1 e-bike (pedal-assist, 20 mph) | Restricted | — |
| Class 2 e-bike (throttle, 20 mph) | Restricted | — |
| Class 3 e-bike (pedal-assist, 28 mph) | Restricted | — |
Zooming out: across White River National Forest, 99% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
Blue River (South) (USFS trail 606) runs 1.5 mi through White River National Forest in Colorado. 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. Underfoot, the trail is recorded as native material. No grade band is recorded, so a steepness-based difficulty isn't available for this trail. Bike use is designated as allowed, typically May–Nov. 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. 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 White River National Forest.
Frequently asked questions
- Can you mountain bike on Blue River (South)?
- Yes. Mountain bikes are designated as allowed on Blue River (South) in White River National Forest, typically May–Nov, per USFS data.
- Are e-bikes allowed on Blue River (South)?
- No e-bike class (1, 2 or 3) is designated on Blue River (South) in the USFS data.
- How long is Blue River (South)?
- Blue River (South) measures about 1.5 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Blue River (South)?
- USFS data records the tread surface of Blue River (South) 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 White River National Forest (USFS trail geometry isn't mapped).
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