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Mountain Gravel Bike Rally

9am start. 115km (71 Miles). 5500’ elevation gain

Hydration or Aid station at:

  • Mile 15

  • Mile 18.8

  • Mile 26.7

  • Mile 32.4

  • Mile 37

  • Mile 54.3

  • Mile 61.3

REGISTER

THIS is why Boulder is known as one of the country’s best GRAVEL destinations. (Note - there is a 12 pm time cut off at the entrance to Rowena mile 24.)

  • Lefthand Canyon

    Lefthand has the perfect 2-4% grade and follows the creek the whole time, providing amazing scenery to keep you cruising.

  • Rowena

    This historic gold mining road is a fun and adventurous connection between Lefthand and Sunshine Canyon.

  • Gold Hill

    Riding through Gold Hill is like going back 100 to simple life in the mountains. Our friends at the Gold Hill Store & Pub will have a surprise for you too!

  • Speedy Gravel Roads

    When you’re out of the mountains, you’ll be flying back to Lyons on Boulder County’s fast and flat gravel!