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USFS National Forest System Trails · Idaho · Updated June 2026

Caribou-Targhee National Forest Mountain Bike Trails

ABike Access Grade A — 98% of rideable miles open to bikes. How we grade

Caribou-Targhee National Forest earns a Bike Access Grade of A: 98% of its rideable trail miles are open to mountain bikes, with Class-1 e-bike access on part of the network. Excellent — most rideable trail miles are open to mountain bikes, with Class-1 e-bike access too.

Caribou-Targhee National Forest carries 4,054 mi of mapped National Forest System trail, of which 2,696 mi across 932 segments is designated for mountain bikes, typically open Year-round. Class 1 e-bikes are designated on 527 segments (1,502 mi).

Reviewed by CanIBikeHere Editorial Team · Updated
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What the USFS data shows for Caribou-Targhee National Forest

Of the 4,054 mi of mapped trail in Caribou-Targhee National Forest, 66% — 2,696 mi across 932 bike-designated segments — is open to mountain bikes in USFS travel-management data.

Tread is overwhelmingly native dirt: USFS lists native material on 1,174 of 1,419 surfaced segments (83%).

On the USFS difficulty rating, intermediate is the most common designation here — 644 of 1,417 rated segments (45%) — across all uses, not bikes alone.

USFS records a year-round bike season for this forest, though 4 different season windows still appear on individual segments at higher elevation.

The longest single named bike segment in the data is Highline at 61.33 mi on native dirt, rated advanced by USFS and open Year-round.

Class 1 e-bikes are designated on 527 segments (1,502 mi), and 14 segments carry an ADA-accessibility flag in the same dataset.

A
Bike Access Grade
98% of rideable miles bike-open
866
Ridable trails
with their own page
2,696 mi
Bike-designated
932 segments
4,054 mi
Total NFS trail
1,425 segments
1,502 mi
Class 1 e-bike
527 segments

Trail surface

  • Native Material1,174
  • Snow242
  • Asphalt2
  • Water1

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

  • Class 3571
  • Class 2563
  • Class 1168
  • Class 4121
  • Class 52

66% 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

TrailMilesSurfaceTrail classBike season
Highline61.33Native Material—Year-round
Railroad Right-Of-Way39.43Native Material—Year-round
Continental Divide27.92Native Material—Year-round
Boundary Trail27.78Native Material—Year-round
Continental Divide Trail20.16Native Material—Year-round
Divide20.02Native Material—Year-round
Continental Divide Trail17.18Native Material—Year-round
Crooked Creek - Willow Creek16.82Native Material—Year-round
Big Bend Ridge Trail16.38Native Material—Year-round
Sheep Driveway16.05Native Material—Year-round
Bitch Creek14.46Native Material—Year-round
Webber Creek - Divide Creek13.91Native Material——
Decoster13.59Native Material—Year-round
West Elkhorn Foothills13.44Native Material—Year-round
Bald Mountain12.55Native Material—Year-round
Piney Pass11.75Native Material—Year-round
Big Elk Creek11.69Native Material—Year-round
Continental Divide11.63Native Material—Year-round
Sf Tincup Ck- Nf Hyde Ck10.99Native Material—Year-round
Lander Trail-Terrace Canyon10.94Native Material—Year-round
Red Ridge10.58Native Material—Year-round
Bell Marsh-Walker-Goodenough10.49Native Material—Year-round
Dunns/Home Canyon10.43Native Material—Year-round
Continental Divide Trail10.22Native Material—Year-round
Salt Basin10Native Material—Year-round

Every trail in Caribou-Targhee National Forest

All 866 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 (49)

Gentle grade band (shallow average slope).

Intermediate grade (436)

Moderate grade band.

Advanced grade (370)

Steep grade band.

Expert grade (6)

Steepest grade band.

Grade not recorded (5)

No grade band recorded in the USFS data.

CSV

Caribou-Targhee National Forest bike-legal trail list (CSV)

Download all 866 bike- and Class 1 e-bike-designated trails in Caribou-Targhee National Forest — name, miles, surface, grade, season, and e-bike class per trail, straight from USFS data.

E-bikes in Caribou-Targhee National Forest

Class 1 on 527 segments · Class 2 on 527 · Class 3 on 527. See full e-bike rules for Caribou-Targhee National Forest →

Where it is

Approximate center of Caribou-Targhee 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 Caribou-Targhee National Forest?
Caribou-Targhee National Forest earns a Bike Access Grade of A: 98% of its rideable trail miles are open to mountain bikes, with Class-1 e-bike access on part of the network. Excellent — most rideable trail miles are open to mountain bikes, with Class-1 e-bike access too.
How many miles of mountain bike trail are in Caribou-Targhee National Forest?
Caribou-Targhee National Forest has about 2,696 mi of bike-designated trail across 932 segments, out of 4,054 mi of total National Forest System trail.
What is the riding season in Caribou-Targhee National Forest?
Most bike-designated trails in Caribou-Targhee National Forest carry a Year-round season in USFS data; higher-elevation trails clear later.
Are e-bikes allowed in Caribou-Targhee National Forest?
Only where designated. Class 1 e-bikes are recorded on 527 segments. See the e-bike rules page for the class-by-class breakdown.

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