Willamette National Forest
Willamette National Forest in Oregon carries 4,534.3 miles of motorized routes from the U.S. Forest Service Motor Vehicle Use Map — 4,381.9 miles of roads and 152.4 miles of trails across 4 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
- 4,534.3
- Ranger districts
- 4
- Roads
- 4,381.9 mi
- Trails
- 152.4 mi
4,381.9 mi of roads · 152.4 mi of trails · Forest code 0618.
Ranger districts in Oregon
The district is the grain — pick one for its full per-vehicle access matrix, seasons, a route-network map and GPX downloads.
| Access highlights | ||||
|---|---|---|---|---|
| Middle Fork Ranger District | 2,440.4 | 2,310.4 | 130 | ATV 2,057.9 mi · Motorcycle 2,128.6 mi · E-bike routes |
| McKenzie River Ranger District | 828.9 | 806.5 | 22.4 | ATV 689.5 mi · Motorcycle 672.5 mi · E-bike routes |
| Sweet Home Ranger District | 659.7 | 659.7 | 0 | ATV 570.5 mi · Motorcycle 570.5 mi |
| Detroit Ranger District | 605.3 | 605.3 | 0 | ATV 515.1 mi · Motorcycle 515.1 mi |
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 | 4 | 3,833 |
| Motorcycle / dirt bike | 4 | 3,886.7 |
| Other wheeled OHV | 4 | 3,756.6 |
| 4WD > 50" | 4 | 3,761.9 |
| 2WD > 50" | 4 | 3,756.6 |
| Tracked OHV > 50" | 4 | 3,756.6 |
| Other OHV > 50" | 4 | 3,756.6 |
| Tracked OHV < 50" | 4 | 3,756.6 |
| Other OHV < 50" | 4 | 3,756.6 |
| Passenger vehicle | 4 | 4,378.5 |
| High-clearance vehicle | 4 | 4,381.9 |
| Truck | 4 | 4,378.5 |
| Bus | 4 | 4,378.5 |
| Motorhome | 4 | 4,378.5 |
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 Oregon national-forest routes, read the methodology, or learn what an MVUM is.