USFS National Forest System Trails · Medicine Bow-Routt National Forest · Colorado · Updated June 2026
Lost Park Snowmobile (USFS trail 110.1W) is a 23.3 mi trail in Medicine Bow-Routt National Forest, Colorado. Mountain-bike use here is not designated in USFS data, with Class 1 e-bikes also designated.
Can I bike Lost Park Snowmobile?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | — | |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | year-round |
| Class 2 e-bike (throttle, 20 mph) | Allowed | year-round |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | year-round |
Zooming out: across Medicine Bow-Routt National Forest, 14% of rideable trail miles are open to mountain bikes — a Bike Access Grade of D.
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About this trail
Lost Park Snowmobile (USFS trail 110.1W) is a 23.3 mi trail in Medicine Bow-Routt National Forest, 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 snow. 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. For traditional mountain bikes, use is not designated according to USFS data. On the electric side, Class 1, Class 2, Class 3 e-bikes are also designated — Class 1 being pedal-assist only, Classes 2 and 3 adding a throttle and higher assisted speed. 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 Medicine Bow-Routt National Forest.
Frequently asked questions
- Can you mountain bike on Lost Park Snowmobile?
- Mountain-bike use on Lost Park Snowmobile is not designated in USFS records, though Class 1 e-bike use is designated. Confirm current rules with the managing ranger district.
- Are e-bikes allowed on Lost Park Snowmobile?
- Class 1, Class 2, Class 3 e-bikes are designated on Lost Park Snowmobile in the USFS data.
- How long is Lost Park Snowmobile?
- Lost Park Snowmobile measures about 23.3 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Lost Park Snowmobile?
- USFS data records the tread surface of Lost Park Snowmobile as snow.
- How difficult is Lost Park Snowmobile?
- 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 Medicine Bow-Routt National Forest (USFS trail geometry isn't mapped).
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