USFS National Forest System Trails · Alaska · Updated October 2026
Can You Mountain Bike in Tongass National Forest, Alaska?
Yes — Tongass National Forest in Alaska has 2.5 mi of bike-designated National Forest System trail across 5 segments, typically open May–Oct, according to official USFS travel-management data.
- Bike-designated
- 2.5 mi5 segments
- Total NFS trail
- 917 mi5,273 segments
- Bike season
- May–OctUSFS managed-use
- ADA-accessible
- 28trail segments
0% of this forest's mapped trail is bike-designated. USFS records trail grade (steepness), not technical MTB difficulty — we surface grade where present but do not infer a black/blue/green rating.
Bike-designated trails in Tongass National Forest
| Trail | Miles | Surface | Bike season |
|---|---|---|---|
| Treadwell Ditch Trail | 10.34 | Native Material | — |
| Twin Lakes Road | 8.25 | Imported Loose Material | — |
| Iris Meadows Road | 7.99 | Imported Loose Material | — |
| Mid Italio | 7.9 | Native Material | — |
| Muddy River | 7.53 | Imported Loose Material | — |
| Shipley Bay 1530000 Road | 7.45 | Imported Loose Material | — |
| Flicker Ridge | 6.9 | Imported Loose Material | — |
| Montana Creek Trail | 6.88 | Native Material | — |
| Indian River Road | 6.75 | Imported Loose Material | — |
| Deer Creek Mid-Vally | 6.47 | Imported Loose Material | — |
| Eagle River | 5.72 | Imported Loose Material | — |
| Situk Lake | 5.66 | Native Material | — |
| Bald Mountain 1425000 Road | 5.38 | Imported Loose Material | — |
| Pine Point 2079000 Rd | 4.9 | Imported Loose Material | — |
| Marble Island North 1480000 | 4.78 | Imported Loose Material | — |
Frequently asked questions
- How many miles of mountain bike trail are in Tongass National Forest?
- Tongass National Forest has about 2.5 mi of bike-designated trail across 5 segments, out of 917 mi of total National Forest System trail.
- Are e-bikes allowed in Tongass National Forest?
- Only where designated — on Forest Service land e-bikes are motor vehicles. Class 1 e-bikes are recorded on 298 segments here.
- What is the mountain-bike season in Tongass National Forest (Alaska)?
- Most bike-designated trails carry a May–Oct season in USFS data; higher-elevation trails open later.