Fat Biking

Fat Bike in Sand
Standard mountain bikes are only able to travel the dirt section of the Medano Pass Road, between PiƱon Flats Campground and Point of No Return (1 mile). Fat bikes have extra wide tires to ride in sand beyond Point of No Return, as long as sand does not become too soft and dry.

The entire dunefield and most of the park and preserve's mountain trails are within federally designated wilderness, where mechanized equipment is not permitted.

While regular bicycling and mountain biking options are very limited, fat bikes (mountain bikes with extra wide tires for sand) are permitted on the Medano Pass Primitive Road, a challenging road with extended sections of sand, creek crossings, and rocks. The road is open to fat biking both for day use and for overnight camping in Medano Canyon. However, these bikes are not permited on State Highway 150, so plan to transport the bikes into the park inorder to access the primitive road where they are allowed.

Check current road conditions before riding; if sand gets soft during dry times, travel may not be possible.

You will be sharing the single lane road with 4WD vehicles, some traveling at higher speeds in order to make it through sandy sections. For your safety, listen and watch carefully for vehicles as you ride.

Last updated: April 5, 2020

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Visitor Center
11999 State Highway 150

Mosca, CO 81146


719 378-6395
Great Sand Dunes Visitor Center main number

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