Register Today

The Subaru Elephant Rock Cycling Festival is the unofficial start to the Colorado cycling season on Sunday June 7, 2015. You will not want to miss the excitement and camaraderie of the 28th annual pilgrimage to Castle Rock for the Rocky Mountain region’s premier cycling festival, a Rocky Mountain tradition.

 New Century Course

We are excited to announce the 2015 re-designed ERock Century course.  This scenic and quiet route connects the country roads through the horse properties east of Franktown to the rolling hills of the Black Forest.  It will a perfect early season century

 Ride Details

Subaru Elephant Rock is a fully supported ride; from aid stations to tech support; SAG vehicles to medical services; it’s our goal to ensure you have a safe and rewarding day in the saddle. You wont want to miss the kick off event to start Colorado’s Cycling Season.

Mail-In Registration Confirmation

If you sent in your registration through the mail click here to confirm your registration.


  • century2
  • metric
  • 40-mile
  • 27-mile-gravel
  • 8-mile_family