Rocky Mountains — CO / ID / UT
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Rocky Mountains — CO / ID / UT

High-Altitude Passes, Big Sky & Epic Climbs

About This Region

The Rocky Mountain region offers the most dramatic and technically challenging gravel riding in North America. From Steamboat Springs' high alpine meadows to Utah's red rock canyon roads and Idaho's remote river valleys, the terrain here demands respect. Expect significant elevation gain, altitude effects above 9,000 feet, dramatic weather changes, and routes that reward riders with scenery that simply doesn't exist anywhere else.

Best Time to Ride

June through September is the primary season, when high passes are snow-free. July and August are ideal for Colorado and Idaho. Utah's canyon country can be ridden April–May and September–October to avoid summer heat. Always check mountain weather forecasts — afternoon thunderstorms are common July–August at elevation. Acclimatize for 24–48 hours before big rides if coming from sea level.

Routes & Course Maps

Rockies
Expert

Leadville Trail 100 MTB

Leadville, CO

105.3 mi12,300 ft67% unpaved

Route by Leadville Race Series (Life Time)

Map & elevation GPX
Rockies
Advanced

SBT GRVL Blue Course

Steamboat Springs, CO

73.4 mi5,130 ft65% unpaved

Route by SBT GRVL

Map & elevation GPX
Rockies
Intermediate

SBT GRVL Red Course

Steamboat Springs, CO

53.1 mi3,740 ft52% unpaved

Route by SBT GRVL

Map & elevation GPX

Races & Events

Rad Dirt Fest

Expected June 2027Trinidad, Colorado

SBT GRVL Black Course

Jun 25 – Jun 27, 2027Steamboat Springs, Colorado
Course map & GPX

Crusher in the Tushar

Expected July 2027Beaver, Utah

Idaho Gravel Series

Expected July 2027Various, Idaho

Leadville Trail 100 MTB

August 14, 2027Leadville, CO
Course map & GPX

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Getting There

Denver International (DEN) is the primary hub for Colorado gravel. Salt Lake City International (SLC) serves Utah events. Boise Airport (BOI) is the gateway for Idaho riding. Steamboat Springs is 3 hours from Denver; Leadville is 2 hours. Car rental is a must. Steamboat Springs, Salida, and Moab all have excellent bike shops and cycling-friendly lodging. Book early for Crusher in the Tushar and SBT GRVL weekends.