USFS National Forest System Trails · Mt. Baker-Snoqualmie National Forest · Washington · Updated October 2026
Bald Mtn Snowmobile 3140 (USFS trail 100.1) is a 6.9 mi trail in Mt. Baker-Snoqualmie National Forest, Washington. Mountain bikes are designated as allowed year-round, with Class 1 e-bikes also designated.
- Trail length
- 6.9 mi
- Grade-based difficulty
- Advancedgrade band +12-20%
- Surface
- Snow
- USFS trail class
- Class 31 primitive · 5 developed
Can I bike Bald Mtn Snowmobile 3140?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | year-round |
| 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 Mt. Baker-Snoqualmie National Forest, 74% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
Bald Mtn Snowmobile 3140 (USFS trail 100.1) is a 6.9 mi trail in Mt. Baker-Snoqualmie National Forest, Washington. 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. The tread is mapped as snow. 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. Bike use is designated as allowed year-round. The record additionally permits Class 1, Class 2, Class 3 e-bike use; recall that Class 1 is pedal-assist, while Class 2 adds a throttle and Class 3 a higher cutoff 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. Because conditions, closures, and local orders change between data refreshes, confirm the current status with the managing ranger district before you ride.
Frequently asked questions
- Can you mountain bike on Bald Mtn Snowmobile 3140?
- Yes. Mountain bikes are designated as allowed on Bald Mtn Snowmobile 3140 in Mt. Baker-Snoqualmie National Forest, year-round, per USFS data.
- Are e-bikes allowed on Bald Mtn Snowmobile 3140?
- Class 1, Class 2, Class 3 e-bikes are designated on Bald Mtn Snowmobile 3140 in the USFS data.
- How long is Bald Mtn Snowmobile 3140?
- Bald Mtn Snowmobile 3140 measures about 6.9 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Bald Mtn Snowmobile 3140?
- USFS data records the tread surface of Bald Mtn Snowmobile 3140 as snow.
- How difficult is Bald Mtn Snowmobile 3140?
- 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 Mt. Baker-Snoqualmie National Forest (USFS trail geometry isn't mapped).
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