USFS National Forest System Trails · Lolo National Forest · Montana · Updated June 2026
Kreis Pond Yellow Loop (USFS trail 66.4) is a 2 mi trail in Lolo National Forest, Montana. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike Kreis Pond Yellow 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 Lolo National Forest, 34% of rideable trail miles are open to mountain bikes — a Bike Access Grade of C.
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About this trail
Kreis Pond Yellow Loop (USFS trail 66.4) is a 2 mi trail in Lolo National Forest, Montana. 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. USFS records list its surface 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. 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. 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 Lolo National Forest.
Frequently asked questions
- Can you mountain bike on Kreis Pond Yellow Loop?
- Yes. Mountain bikes are designated as allowed on Kreis Pond Yellow Loop in Lolo National Forest, year-round, per USFS data.
- Are e-bikes allowed on Kreis Pond Yellow Loop?
- No e-bike class (1, 2 or 3) is designated on Kreis Pond Yellow Loop in the USFS data.
- How long is Kreis Pond Yellow Loop?
- Kreis Pond Yellow Loop measures about 2 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Kreis Pond Yellow Loop?
- USFS data records the tread surface of Kreis Pond Yellow Loop as native material.
- How difficult is Kreis Pond Yellow Loop?
- 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 Lolo National Forest (USFS trail geometry isn't mapped).
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