USFS National Forest System Trails · Carson National Forest · New Mexico · Updated June 2026
Agua Piedra (USFS trail 19A) is a 7.1 mi trail in Carson National Forest, New Mexico. Mountain bikes are designated as allowed, Mar–Nov, with Class 1 e-bikes also designated.
Can I bike Agua Piedra?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | Mar–Nov |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | Mar–Nov |
| Class 2 e-bike (throttle, 20 mph) | Allowed | Mar–Nov |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | Mar–Nov |
Zooming out: across Carson National Forest, 78% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
Agua Piedra (USFS trail 19A) runs 7.1 mi through Carson National Forest in New Mexico. Everything below comes straight from the US Forest Service National Forest System Trails dataset — length, surface, slope-derived difficulty, and the specific bike and e-bike designations on record — so you can check legality before you load up. USFS records list its surface as native material. Based on slope, this is a Intermediate trail (grade band 8-10%); that reflects moderate gradient and is not the same as a technical MTB difficulty rating. Bike use is designated as allowed, typically Mar–Nov. On the electric side, Class 1, Class 2, Class 3 e-bikes are also designated (Mar–Nov) — 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. 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 Agua Piedra?
- Yes. Mountain bikes are designated as allowed on Agua Piedra in Carson National Forest, typically Mar–Nov, per USFS data.
- Are e-bikes allowed on Agua Piedra?
- Class 1, Class 2, Class 3 e-bikes are designated on Agua Piedra in the USFS data.
- How long is Agua Piedra?
- Agua Piedra measures about 7.1 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Agua Piedra?
- USFS data records the tread surface of Agua Piedra as native material.
- How difficult is Agua Piedra?
- Its grade-based difficulty is Intermediate (grade band 8-10%), 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 Carson National Forest (USFS trail geometry isn't mapped).
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