San Bernardino National Forest
San Bernardino National Forest in California carries 843.5 miles of motorized routes from the U.S. Forest Service Motor Vehicle Use Map — 798.9 miles of roads and 44.6 miles of trails across 3 ranger districts. Open any district for its full per-vehicle access matrix (ATV, motorcycle, side-by-side, 4x4 and e-bike), seasons, a route-network map, and GPX downloads. These pages are informational; the controlling document is each district's official MVUM.
- Total motorized miles
- 843.5
- Ranger districts
- 3
- Roads
- 798.9 mi
- Trails
- 44.6 mi
798.9 mi of roads · 44.6 mi of trails · Forest code 0512.
Ranger districts in California
The district is the grain — pick one for its full per-vehicle access matrix, seasons, a route-network map and GPX downloads.
| Access highlights | ||||
|---|---|---|---|---|
| Mountaintop Ranger District | 410 | 394.3 | 15.7 | ATV 112.6 mi · Motorcycle 114.6 mi · E-bike routes |
| Front Country Ranger District | 265.9 | 245.8 | 20.1 | ATV 32.2 mi · Motorcycle 32.2 mi · E-bike routes |
| San Jacinto Ranger District | 167.6 | 158.8 | 8.8 | ATV 51.3 mi · Motorcycle 54.3 mi · E-bike routes |
Data: U.S. Forest Service, Enterprise Data Warehouse (EDW) Motor Vehicle Use Map — Roads (layer 1) and Trails (layer 2), retrieved 2026-07-11. A work of the U.S. Government, public domain (17 U.S.C. §105). State assignment: U.S. Census Bureau TIGERweb state boundaries.
Forest-wide vehicle access
How many of this forest's ranger districts designate each vehicle class, and the total designated miles across the forest.
| Vehicle class | Districts | Open miles |
|---|---|---|
| ATV | 3 | 196.1 |
| Motorcycle / dirt bike | 3 | 201.1 |
| Other wheeled OHV | 3 | 195.3 |
| 4WD > 50" | 3 | 180.3 |
| 2WD > 50" | 3 | 168.9 |
| Tracked OHV > 50" | 3 | 168.9 |
| Other OHV > 50" | 3 | 168.9 |
| Tracked OHV < 50" | 3 | 168.9 |
| Other OHV < 50" | 3 | 168.9 |
| Passenger vehicle | 3 | 796.8 |
| High-clearance vehicle | 3 | 798.9 |
| Truck | 3 | 796.8 |
| Bus | 3 | 796.8 |
| Motorhome | 3 | 796.8 |
These pages summarise the Forest Service Motor Vehicle Use Map data; they are not the official MVUM and not legal documents. The controlling document is each district's official Motor Vehicle Use Map — carry it and follow posted signs.
Data vintage: USFS EDW MVUM, retrieved 2026-07-11.
Explore
Browse all California national-forest routes, read the methodology, or learn what an MVUM is.