How many miles of mountain bike trail are in Shasta-Trinity National Forest?

Shasta-Trinity National Forest has about 189 mi of bike-designated trail across 76 segments, out of 1,179 mi of total National Forest System trail.

What is the riding season in Shasta-Trinity National Forest?

Most bike-designated trails in Shasta-Trinity National Forest carry a Year-round season in USFS data; higher-elevation trails clear later.

Are e-bikes allowed in Shasta-Trinity National Forest?

Only where designated. Class 1 e-bikes are recorded on 29 segments. See the e-bike rules page for the class-by-class breakdown.

Updated October 2026

Shasta-Trinity National Forest Mountain Bike Trails

Mountain bike

189mi

designated on 76 segments

16% of mapped trail

E-bike

48.2miClass 1

designated on 29 segments

4% of mapped trail

Mountain bike

189mi

designated on 76 segments

16% of mapped trail

Season on record: Year-round
Bike Access Grade: A80% of rideable miles open to bikes. How we grade

E-bike

48.2miClass 1

designated on 29 segments

Class 148.2 mi
Class 248.2 mi
Class 348.2 mi

Treated as a motor vehicle: ridden only where designated.

Ridable trails: 65
Mapped trail: 1,179 mi on 818 segments

Both lanes share one scale: the 1,179 mi of National Forest System trail mapped in Shasta-Trinity National Forest, California. From USFS National Forest System Trails records, updated October 2026.

Shasta-Trinity National Forest earns a Bike Access Grade of A: 80% 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.

Shasta-Trinity National Forest carries 1,179 mi of mapped National Forest System trail, of which 189 mi across 76 segments is designated for mountain bikes, typically open Year-round. Class 1 e-bikes are designated on 29 segments (48.2 mi).

Reviewed by CanIBikeHere Editorial Team · Updated Oct 15, 2026

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Of the 1,179 mi of mapped trail in Shasta-Trinity National Forest, 16% — 189 mi across 76 bike-designated segments — is open to mountain bikes in USFS travel-management data.

Tread is overwhelmingly native dirt: USFS lists native material on 722 of 816 surfaced segments (88%).

On the USFS difficulty rating, advanced is the most common designation here — 417 of 786 rated segments (53%) — across all uses, not bikes alone.

USFS records a year-round bike season for this forest, though high-elevation trails clear later in practice.

The longest single named bike segment in the data is Curl Ridge Jeep Trail at 19.7 mi on native dirt, rated advanced by USFS.

Class 1 e-bikes are designated on 29 segments (48.2 mi), and 9 segments carry an ADA-accessibility flag in the same dataset.

Trail surface

Native Material722
Imported Compacted Material58
Asphalt20
Snow9
Other2

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

Class 3517
Class 4173
Class 274
Class 123
Class 523

16% 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

Trail	Miles	Surface	Trail class	Bike season
Curl Ridge Jeep TrailNative Material	19.7	Native Material	—	—
South Fork Trinity River TrailNative MaterialYear-round	16.06	Native Material	—	Year-round
Upper Mccloud RiverNative MaterialYear-round	15.79	Native Material	—	Year-round
Bagley MtnNative Material	11.81	Native Material	—	—
Bear SpringsNative MaterialYear-round	9.76	Native Material	—	Year-round
Sisson-Callahan NrtNative MaterialYear-round	8.9	Native Material	—	Year-round
ClikapudiNative MaterialYear-round	8.36	Native Material	—	Year-round
Garden RidgeNative Material	6.82	Native Material	—	—
GatewayNative MaterialYear-round	6.37	Native Material	—	Year-round
Huckleberry LoopNative MaterialYear-round	6.05	Native Material	—	Year-round
SweepstakesNative MaterialYear-round	5.7	Native Material	—	Year-round
East Tule CreekNative MaterialYear-round	5.58	Native Material	—	Year-round
Smoky CreekNative MaterialYear-round	5.32	Native Material	—	Year-round
Muirs AscensionNative MaterialYear-round	5.01	Native Material	—	Year-round
Beegum CreekNative MaterialYear-round	4.68	Native Material	—	Year-round
Dry Fork CreekNative MaterialYear-round	4.65	Native Material	—	Year-round
La Grange DitchNative MaterialYear-round	4.4	Native Material	—	Year-round
Rough GulchNative MaterialYear-round	4.32	Native Material	—	Year-round
Lower South ForkNative MaterialYear-round	3.85	Native Material	—	Year-round
Cosmic ConnectorNative MaterialYear-round	3.5	Native Material	—	Year-round
Mckenzie GulchNative MaterialYear-round	3.44	Native Material	—	Year-round
Rays PeakNative MaterialYear-round	3.34	Native Material	—	Year-round
Marble CavesNative MaterialYear-round	3.09	Native Material	—	Year-round
Bailey CoveNative MaterialYear-round	2.91	Native Material	—	Year-round
Trinity LakeshoreNative MaterialYear-round	2.83	Native Material	—	Year-round

Every trail in Shasta-Trinity National Forest

All 65 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 (4)

Gentle grade band (shallow average slope).

Upper Mccloud River15.8 mi
Native Material, class 4bike
Bagley Mtn11.8 mi
Native Material, class 5Class 1 e-bike
Bailey Cove2.9 mi
Native Material, class 3bike
Moon Doggie1.2 mi
Native Materialbike

Intermediate grade (15)

Moderate grade band.

Gateway6.4 mi
Native Material, class 4bike
Mckenzie Gulch3.4 mi
Native Material, class 3bike
Day Ranch2.6 mi
Native Material, class 3bike
Jackass Ridge2.6 mi
Native Material, class 3bike
Musser Homested Loop2.5 mi
Native Material, class 3bike
East Garden Gulch2 mi
Native Material, class 3bike
Howe Ditch1.8 mi
Native Material, class 3bike
Musser Hill1.6 mi
Native Material, class 3bike
Lower Jackass Ridge1.2 mi
Native Material, class 3bike
Marly0.9 mi
Native Material, class 2bike
Stump0.9 mi
Native Material, class 2bike
My Trail0.7 mi
Native Material, class 2bike
Ten Cent Gulch0.7 mi
Native Material, class 3bike
Sydney Gulch0.5 mi
Native Material, class 3bike
Tunnel0.5 mi
Native Material, class 2bike

Advanced grade (20)

Steep grade band.

Curl Ridge Jeep Trail19.7 mi
Native Material, class 4Class 1 e-bike
South Fork Trinity River Trail16.1 mi
Native Material, class 3bike
Sisson-Callahan Nrt8.9 mi
Native Material, class 4bike
Clikapudi8.4 mi
Native Material, class 4bike
Garden Ridge6.8 mi
Native Material, class 3Class 1 e-bike
East Tule Creek5.6 mi
Native Material, class 4bike
Smoky Creek5.3 mi
Native Material, class 4bike
Beegum Creek4.7 mi
Native Material, class 4bike
Dry Fork Creek4.7 mi
Native Material, class 4bike
Rough Gulch4.3 mi
Native Material, class 1bike
Lower South Fork3.9 mi
Native Material, class 3bike
Rays Peak3.3 mi
Native Material, class 3bike
Marble Caves3.1 mi
Native Material, class 2bike
Trinity Lakeshore2.8 mi
Native Material, class 3bike
Waters Gulch2.8 mi
Imported Compacted Material, class 4bike
Deerlick2.6 mi
Native Material, class 3Class 1 e-bike
Snow Gap2 mi
Native Material, class 3bike
Dog Gulch1.2 mi
Native Material, class 3bike
Clikapudi C1.1 mi
Native Material, class 4bike
Packers Fish Loop0.7 mi
Native Material, class 4bike

Expert grade (5)

Steepest grade band.

Dobbins Gulch2 mi
Native Material, class 2Class 1 e-bike
Star Mountain Ridge1.2 mi
Native Material, class 2Class 1 e-bike
Seven Up1 mi
Native Material, class 2Class 1 e-bike
Indian Valley Dispersed0.8 mi
Native Material, class 2Class 1 e-bike
Mud Springs0.5 mi
Native Material, class 2Class 1 e-bike

Grade not recorded (21)

No grade band recorded in the USFS data.

Bear Springs9.8 mi
Native Material, class 3bike
Huckleberry Loop6.1 mi
Native Materialbike
Sweepstakes5.7 mi
Native Material, class 4bike
Muirs Ascension5 mi
Native Material, class 3bike
La Grange Ditch4.4 mi
Native Material, class 4bike
Cosmic Connector3.5 mi
Native Materialbike
Browder2.5 mi
Native Material, class 4bike
Junkins Ditch2.2 mi
Native Material, class 4bike
Supernatural Singletrack1.9 mi
Native Material, class 2bike
Lemurian Delirium1.7 mi
Native Material, class 3bike
Five Cent Gulch1.6 mi
Native Material, class 4bike
Upper Howe Ditch1.6 mi
Native Material, class 4bike
Blue Lead1.5 mi
Native Material, class 4bike
Everitt Traverse1.3 mi
Native Materialbike
Crags View1.3 mi
Native Materialbike
Seavy Ditch1.2 mi
Native Materialbike
Pyroclasm1.2 mi
Native Material, class 3bike
Strawberry Valley1 mi
Native Material, class 3bike
Chipmunk1 mi
Native Materialbike
Long Gulch0.8 mi
Native Material, class 4bike
Ware Ditch0.8 mi
Native Material, class 4bike

CSV

Shasta-Trinity National Forest bike-legal trail list (CSV)

Download all 65 bike- and Class 1 e-bike-designated trails in Shasta-Trinity National Forest — name, miles, surface, grade, season, and e-bike class per trail, straight from USFS data.

E-bikes in Shasta-Trinity National Forest

Class 1 on 29 segments · Class 2 on 29 · Class 3 on 29. See full e-bike rules for Shasta-Trinity National Forest →

Where it is

Approximate center of Shasta-Trinity 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 Shasta-Trinity National Forest?: Shasta-Trinity National Forest earns a Bike Access Grade of A: 80% 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 Shasta-Trinity National Forest?: Shasta-Trinity National Forest has about 189 mi of bike-designated trail across 76 segments, out of 1,179 mi of total National Forest System trail.
What is the riding season in Shasta-Trinity National Forest?: Most bike-designated trails in Shasta-Trinity National Forest carry a Year-round season in USFS data; higher-elevation trails clear later.
Are e-bikes allowed in Shasta-Trinity National Forest?: Only where designated. Class 1 e-bikes are recorded on 29 segments. See the e-bike rules page for the class-by-class breakdown.

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