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Updated October 2026

Tongass National Forest Mountain Bike Trails

Mountain bike

2.5mi

designated on 5 segments

<1% of mapped trail

E-bike

475miClass 1

designated on 298 segments

52% of mapped trail

Mountain bike

2.5mi

designated on 5 segments

<1% of mapped trail

Season on record
May–Oct
Bike Access Grade
F0% of rideable miles open to bikes. How we grade

E-bike

475miClass 1

designated on 298 segments

  • Class 1475 mi
  • Class 2475 mi
  • Class 3475 mi

Treated as a motor vehicle: ridden only where designated.

Ridable trails
240
Mapped trail
917 mi on 5,273 segments

Both lanes share one scale: the 917 mi of National Forest System trail mapped in Tongass National Forest, Alaska. From USFS National Forest System Trails records, updated October 2026.

Tongass National Forest earns a Bike Access Grade of F: 0% of its rideable trail miles are open to mountain bikes, with Class-1 e-bike access on part of the network. Restricted — traditional bikes are open on very few of the forest’s rideable miles.

Tongass National Forest carries 917 mi of mapped National Forest System trail, of which 2.5 mi across 5 segments is designated for mountain bikes, typically open May–Oct. Class 1 e-bikes are designated on 298 segments (475 mi).

Reviewed by CanIBikeHere Editorial Team · Updated
Where to stay near Tongass National Forest →

What the USFS data shows for Tongass National Forest

Of the 917 mi of mapped trail in Tongass National Forest, 0% — 2.5 mi across 5 bike-designated segments — is open to mountain bikes in USFS travel-management data.

Tread is overwhelmingly native dirt: USFS lists native material on 2,934 of 5,269 surfaced segments (56%).

On the USFS difficulty rating, easy is the most common designation here — 2,451 of 5,268 rated segments (47%) — across all uses, not bikes alone.

The headline bike season runs May–Oct; individual segments vary.

The longest single named bike segment in the data is Treadwell Ditch Trail at 10.34 mi on native dirt, rated easy by USFS.

Class 1 e-bikes are designated on 298 segments (475 mi), and 28 segments carry an ADA-accessibility flag in the same dataset.

Trail surface

  • Native Material2,934
  • Imported Loose Material791
  • Imported Compacted Material748
  • Other700
  • Snow79

USFS trail class (1 = primitive · 5 = developed)

  • Class 32,983
  • Class 21,449
  • Class 4551
  • Class 1276
  • Class 513

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.

Largest bike-designated trails

TrailMiles
Treadwell Ditch TrailNative Material10.34
Twin Lakes RoadImported Loose Material8.25
Iris Meadows RoadImported Loose Material7.99
Mid ItalioNative Material7.9
Muddy RiverImported Loose Material7.53
Shipley Bay 1530000 RoadImported Loose Material7.45
Flicker RidgeImported Loose Material6.9
Montana Creek TrailNative Material6.88
Indian River RoadImported Loose Material6.75
Deer Creek Mid-VallyImported Loose Material6.47
Eagle RiverImported Loose Material5.72
Situk LakeNative Material5.66
Bald Mountain 1425000 RoadImported Loose Material5.38
Pine Point 2079000 RdImported Loose Material4.9
Marble Island North 1480000Imported Loose Material4.78
Saint John Baptist RoadImported Loose Material4.78
Bushy 8060500 RoadImported Loose Material4.65
8337000 RoadImported Loose Material4.6
Lake 132Imported Loose Material4.52
Ocean Blvd RoadImported Loose Material4.3
Mckenzie 2156000 RoadImported Loose Material4.29
Three Knobs 1525200 RoadImported Loose Material4.12
Situk River (Middle Situk CabiNative Material3.88
Patterson RiverImported Loose Material3.84
8400000 System Shoal CoveImported Loose Material3.74

Every trail in Tongass National Forest

All 240 ridable trails in this forest — every trail where USFS data designates mountain-bike or Class 1 e-bike use, grouped by grade-based steepness. Grade reflects slope, not technical difficulty. Each trail links to its full data profile.

Easy grade (40)

Gentle grade band (shallow average slope).

Intermediate grade (1)

Moderate grade band.

Advanced grade (199)

Steep grade band.

CSV

Tongass National Forest bike-legal trail list (CSV)

Download all 240 bike- and Class 1 e-bike-designated trails in Tongass National Forest — name, miles, surface, grade, season, and e-bike class per trail, straight from USFS data.

E-bikes in Tongass National Forest

Class 1 on 298 segments · Class 2 on 298 · Class 3 on 298. See full e-bike rules for Tongass National Forest →

Where it is

Approximate center of Tongass 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 Tongass National Forest?
Tongass National Forest earns a Bike Access Grade of F: 0% of its rideable trail miles are open to mountain bikes, with Class-1 e-bike access on part of the network. Restricted — traditional bikes are open on very few of the forest’s rideable miles.
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.
What is the riding season in Tongass National Forest?
Most bike-designated trails in Tongass National Forest carry a May–Oct season in USFS data; higher-elevation trails clear later.
Are e-bikes allowed in Tongass National Forest?
Only where designated. Class 1 e-bikes are recorded on 298 segments. See the e-bike rules page for the class-by-class breakdown.

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Where to stay near Tongass National Forest

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Top-rated places to stay near Tongass National Forest

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