USFS National Forest System Trails · Cleveland National Forest · California · Updated June 2026
San Diego River Gorge Trail (USFS trail 2E04) is a 2.7 mi trail in Cleveland National Forest, California. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike San Diego River Gorge Trail?
| 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 Cleveland National Forest, 75% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
San Diego River Gorge Trail (USFS trail 2E04) is a 2.7 mi trail in Cleveland National Forest, California. 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 native material. Its grade-based difficulty is Easy (grade band 0-5%) — a gentle steepness profile derived from USFS slope data, not a technical mountain-bike rating. Bike use is designated as allowed year-round. The agency lists no Class 1, 2 or 3 e-bike designation here; absent a local order to the contrary, that means e-bikes are not an allowed use on this trail. The route is mapped as USFS Trail Class 2 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 Cleveland National Forest.
Frequently asked questions
- Can you mountain bike on San Diego River Gorge Trail?
- Yes. Mountain bikes are designated as allowed on San Diego River Gorge Trail in Cleveland National Forest, year-round, per USFS data.
- Are e-bikes allowed on San Diego River Gorge Trail?
- No e-bike class (1, 2 or 3) is designated on San Diego River Gorge Trail in the USFS data.
- How long is San Diego River Gorge Trail?
- San Diego River Gorge Trail measures about 2.7 mi in total, summed across its mapped National Forest System segments.
- What is the surface of San Diego River Gorge Trail?
- USFS data records the tread surface of San Diego River Gorge Trail as native material.
- How difficult is San Diego River Gorge Trail?
- Its grade-based difficulty is Easy (grade band 0-5%), 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 Cleveland National Forest (USFS trail geometry isn't mapped).
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