Updated October 2026
Washington Mountain Bike Trails
Mountain bike
711mi
designated on 184 segments
8% of mapped trail
E-bike
463miClass 1
designated on 104 segments
5% of mapped trail
Mountain bike
711mi
designated on 184 segments
8% of mapped trail
E-bike
463miClass 1
designated on 104 segments
- Class 1463 mi
- Class 2463 mi
- Class 3463 mi
Treated as a motor vehicle: ridden only where designated.
- National forests
- 5
- Ridable trails
- 207
Both lanes share one scale: the 9,357 mi of National Forest System trail mapped in Washington's 5 national forests. From USFS National Forest System Trails records, updated October 2026.
Across 5 national forests in Washington, USFS data maps 711 mi of bike-designated trail on 184 segments, led by Colville National Forest (341 mi). Class 1 e-bikes are designated on 104 segments.
National forests in Washington
| National forest | Bike miles | Total trail | Class 1 e-bike |
|---|---|---|---|
| Colville National Forest | 341 mi | 802 mi | 45 |
| Mt. Baker-Snoqualmie National Forest | 268 mi | 1,473 mi | 53 |
| Olympic National Forest | 99.7 mi | 287 mi | 5 |
| Okanogan-Wenatchee National Forest | 2.3 mi | 5,343 mi | 1 |
| Gifford Pinchot National Forest | 0 mi | 1,452 mi | 0 |
E-bike rules in Washington
On Forest Service land e-bikes are motor vehicles, allowed only where designated. See Washington e-bike rules by class and forest →
Browse by grade-based difficulty
Steepness bands derived from the USFS grade field — a slope measure, not a technical mountain-bike rating.
Top trails in Washington
The 30 longest ridable trails in Washington by mapped mileage. Each links to its full USFS data profile.
Washington bike-legal trail list (CSV)
Download every one of the 207 bike- and Class 1 e-bike-designated trails across Washington's national forests — miles, surface, grade, season, and e-bike class per trail, from official USFS data.
Frequently asked questions
- How many miles of national-forest mountain bike trail are in Washington?
- About 711 mi of bike-designated trail across 5 national forests, from USFS travel-management data.
- Which national forest has the most mountain biking in Washington?
- Colville National Forest, with about 341 mi of bike-designated trail.
- Are e-bikes allowed in Washington national forests?
- Only where designated — e-bikes are motor vehicles on Forest Service land. Class 1 access is recorded on 104 segments. See the Washington e-bike rules page.