USFS National Forest System Trails · Bridger-Teton National Forest · Wyoming · Updated June 2026
Poison Creek (USFS trail 4207) is a 2.1 mi trail in Bridger-Teton National Forest, Wyoming. Mountain bikes are designated as allowed, May–Oct, with Class 1 e-bikes also designated.
Can I bike Poison Creek?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | May–Oct |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | Jul–Sep |
| Class 2 e-bike (throttle, 20 mph) | Allowed | Jul–Sep |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | Jul–Sep |
Zooming out: across Bridger-Teton National Forest, 53% of rideable trail miles are open to mountain bikes — a Bike Access Grade of B.
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About this trail
In Bridger-Teton National Forest, Wyoming, Poison Creek (USFS trail 4207) covers 2.1 mi of National Forest System trail. 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 native material. No grade band is recorded, so a steepness-based difficulty isn't available for this trail. Mountain bikes are allowed, with a May–Oct season in the data. On the electric side, Class 1, Class 2, Class 3 e-bikes are also designated (Jul–Sep) — 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 Bridger-Teton National Forest.
Frequently asked questions
- Can you mountain bike on Poison Creek?
- Yes. Mountain bikes are designated as allowed on Poison Creek in Bridger-Teton National Forest, typically May–Oct, per USFS data.
- Are e-bikes allowed on Poison Creek?
- Class 1, Class 2, Class 3 e-bikes are designated on Poison Creek in the USFS data.
- How long is Poison Creek?
- Poison Creek measures about 2.1 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Poison Creek?
- USFS data records the tread surface of Poison Creek 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 Bridger-Teton National Forest (USFS trail geometry isn't mapped).
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