USFS National Forest System Trails · California · Updated June 2026
San Bernardino National Forest Mountain Bike Trails
San Bernardino National Forest earns a Bike Access Grade of F: 0% of its rideable trail miles are open to mountain bikes (no Class-1 e-bike designation on record). Restricted — traditional bikes are open on very few of the forest’s rideable miles.
San Bernardino National Forest carries 608 mi of mapped National Forest System trail, of which 0 mi across 0 segments is designated for mountain bikes. Class 1 e-bikes are designated on 0 segments (0 mi).
What the USFS data shows for San Bernardino National Forest
San Bernardino National Forest maps 608 mi of National Forest System trail across 223 segments, but USFS travel-management data records no bike-designated mileage for this forest — every segment shown here is hike/stock or otherwise non-bike in the official layer.
The network is built mostly on native dirt: 218 of 223 surfaced segments (98%) are native material.
By USFS difficulty rating the trails skew advanced, the most common designation at 131 of 223 rated segments (59%).
The most common USFS trail class is Class 3 (169 segments), on the 1-primitive to 5-developed scale.
158 segments carry an ADA-accessibility flag in the dataset.
Trail surface
- Native Material218
- Asphalt5
USFS trail class (1 = primitive · 5 = developed)
- Class 3169
- Class 230
- Class 412
- Class 16
- Class 56
0% of this forest's mapped trail is bike-designated. Note: USFS records trail grade (steepness), not technical MTB difficulty — we surface grade where present but do not infer a black/blue/green rating from it.
E-bikes in San Bernardino National Forest
Class 1 on 0 segments · Class 2 on 0 · Class 3 on 0. See full e-bike rules for San Bernardino National Forest →
Where it is
Approximate center of San Bernardino National Forest. USFS trail geometry isn't mapped here — use the ranger district for trailheads.
Frequently asked questions
- What is the bike access grade for San Bernardino National Forest?
- San Bernardino National Forest earns a Bike Access Grade of F: 0% of its rideable trail miles are open to mountain bikes (no Class-1 e-bike designation on record). Restricted — traditional bikes are open on very few of the forest’s rideable miles.
- How many miles of mountain bike trail are in San Bernardino National Forest?
- San Bernardino National Forest has about 0 mi of bike-designated trail across 0 segments, out of 608 mi of total National Forest System trail.
- What is the riding season in San Bernardino National Forest?
- Season windows vary by trail and elevation in San Bernardino National Forest; check current conditions with the ranger district.
- Are e-bikes allowed in San Bernardino National Forest?
- Only where designated. Class 1 e-bikes are recorded on 0 segments. See the e-bike rules page for the class-by-class breakdown.
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