USFS National Forest System Trails · Lolo National Forest · Montana · Updated June 2026
Kreis Pond Green Loop (USFS trail 66.1) is a 2.3 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 Green 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 Green Loop (USFS trail 66.1) is a 2.3 mi trail in Lolo National Forest, Montana. The figures here are pulled from the official US Forest Service trail data for Lolo National Forest, covering the trail's mileage, tread, grade band, and the bike and e-bike uses the agency lists as designated. The tread is mapped as native material. Based on slope, this is a Advanced trail (grade band 12-20%); that reflects steep gradient and is not the same as a technical MTB difficulty rating. Bike use is designated as allowed year-round. 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 Kreis Pond Green Loop?
- Yes. Mountain bikes are designated as allowed on Kreis Pond Green Loop in Lolo National Forest, year-round, per USFS data.
- Are e-bikes allowed on Kreis Pond Green Loop?
- No e-bike class (1, 2 or 3) is designated on Kreis Pond Green Loop in the USFS data.
- How long is Kreis Pond Green Loop?
- Kreis Pond Green Loop measures about 2.3 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Kreis Pond Green Loop?
- USFS data records the tread surface of Kreis Pond Green Loop as native material.
- How difficult is Kreis Pond Green 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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