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Updated October 2026

Arapaho and Roosevelt National Forests Mountain Bike Trails

Mountain bike

620mi

designated on 285 segments

43% of mapped trail

E-bike

132miClass 1

designated on 53 segments

9% of mapped trail

Mountain bike

620mi

designated on 285 segments

43% of mapped trail

Season on record
Year-round
Bike Access Grade
A99% of rideable miles open to bikes. How we grade

E-bike

132miClass 1

designated on 53 segments

  • Class 1132 mi
  • Class 2132 mi
  • Class 3132 mi

Treated as a motor vehicle: ridden only where designated.

Ridable trails
228
Mapped trail
1,440 mi on 910 segments

Both lanes share one scale: the 1,440 mi of National Forest System trail mapped in Arapaho and Roosevelt National Forests, Colorado. From USFS National Forest System Trails records, updated October 2026.

Arapaho and Roosevelt National Forests earns a Bike Access Grade of A: 99% 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.

Arapaho and Roosevelt National Forests carries 1,440 mi of mapped National Forest System trail, of which 620 mi across 285 segments is designated for mountain bikes, typically open Year-round. Class 1 e-bikes are designated on 53 segments (132 mi).

Reviewed by CanIBikeHere Editorial Team · Updated
Where to stay near Arapaho and Roosevelt National Forests →

What the USFS data shows for Arapaho and Roosevelt National Forests

Of the 1,440 mi of mapped trail in Arapaho and Roosevelt National Forests, 43% — 620 mi across 285 bike-designated segments — is open to mountain bikes in USFS travel-management data.

Tread is overwhelmingly native dirt: USFS lists native material on 794 of 910 surfaced segments (87%).

On the USFS difficulty rating, advanced is the most common designation here — 609 of 905 rated segments (67%) — across all uses, not bikes alone.

USFS records a year-round bike season for this forest, though 3 different season windows still appear on individual segments at higher elevation.

The longest single named bike segment in the data is Flowers at 18.51 mi on native dirt, rated advanced by USFS and open Year-round.

Class 1 e-bikes are designated on 53 segments (132 mi), and 8 segments carry an ADA-accessibility flag in the same dataset.

Trail surface

  • Native Material794
  • Snow106
  • Asphalt4
  • Imported Loose Material3
  • Other2

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

  • Class 2521
  • Class 3322
  • Class 433
  • Class 124
  • Class 56

43% 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
FlowersNative MaterialYear-round18.51
High LonesomeNative MaterialYear-round18.15
Buchanan PassNative MaterialYear-round15.61
Cub CreekNative MaterialYear-round15.18
SourdoughNative MaterialYear-round14.64
Bard CreekNative MaterialYear-round10.5
Danner PassNative MaterialYear-round10
Lookout MountainNative MaterialYear-round8.26
West StillwaterNative MaterialJun–Nov8.17
Crosier MountainNative MaterialYear-round8
Strawberry CreekNative MaterialJun–Nov7.84
Pawnee PassNative MaterialYear-round7.76
Jones PassNative MaterialYear-round7.36
Granite RidgeNative MaterialJul–Oct7.2
Williams PeakNative MaterialJun–Nov6.76
Richey CreekNative MaterialJun–Nov6.67
St Vrain MountainNative MaterialYear-round6.65
Hewlett GulchNative MaterialYear-round6.5
M. Walter PesmanNative MaterialJun–Nov6.49
Summit FlatsNative MaterialJun–Nov6.33
Elk MountainNative MaterialJun–Nov6.19
Mount FloraNative MaterialYear-round6.02
Hells HoleNative MaterialYear-round5.96
Roaring CreekNative MaterialYear-round5.91
Resthouse MeadowsNative MaterialYear-round5.89

Every trail in Arapaho and Roosevelt National Forests

All 228 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 (66)

Gentle grade band (shallow average slope).

Intermediate grade (11)

Moderate grade band.

Advanced grade (148)

Steep grade band.

Grade not recorded (3)

No grade band recorded in the USFS data.

  • West Stillwater8.2 mi
    Native Material, Jun–Novbike + e-bike
  • Eye To Eye2.2 mi
    Native Material, class 3, Jul–Novbike
  • Double Bit0.8 mi
    Native Material, class 3, Jun–Novbike + e-bike
CSV

Arapaho and Roosevelt National Forests bike-legal trail list (CSV)

Download all 228 bike- and Class 1 e-bike-designated trails in Arapaho and Roosevelt National Forests — name, miles, surface, grade, season, and e-bike class per trail, straight from USFS data.

E-bikes in Arapaho and Roosevelt National Forests

Class 1 on 53 segments · Class 2 on 53 · Class 3 on 53. See full e-bike rules for Arapaho and Roosevelt National Forests →

Where it is

Approximate center of Arapaho and Roosevelt National Forests. USFS trail geometry isn't mapped here — use the ranger district for trailheads.

Frequently asked questions

What is the bike access grade for Arapaho and Roosevelt National Forests?
Arapaho and Roosevelt National Forests earns a Bike Access Grade of A: 99% 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 Arapaho and Roosevelt National Forests?
Arapaho and Roosevelt National Forests has about 620 mi of bike-designated trail across 285 segments, out of 1,440 mi of total National Forest System trail.
What is the riding season in Arapaho and Roosevelt National Forests?
Most bike-designated trails in Arapaho and Roosevelt National Forests carry a Year-round season in USFS data; higher-elevation trails clear later.
Are e-bikes allowed in Arapaho and Roosevelt National Forests?
Only where designated. Class 1 e-bikes are recorded on 53 segments. See the e-bike rules page for the class-by-class breakdown.

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Where to stay near national forests

Where to stay near Arapaho and Roosevelt National Forests

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