2016 Rattlesnake Ramble

12th Annual Race on September 10th

2015 Full Results Here

2015 Photos

More 2015 Photos

2015 Race Report

RACE IS FILLED! Thanks for your support.

NOTE: If you have not paid, you are NOT guaranteed a starting position. Pay via check or PayPal to guarantee a starting spot.

2016 Participants (130)

New this year: Wave Start!

Men start at 8:00 a.m. Women start at 8:15 a.m. Kids start at 8:02 a.m.

Shirts are still available in all sizes! Just $25. Contact me to purchase one.


Shirts left: 0

2013 Rattlesnake Ramble from Bill Wright on Vimeo.

When: Saturday, September 10, 2016, 8:00 a.m.
Where: Eldorado Springs Canyon State Park, just south of Boulder
Course: A 4.25 mile out-and-back course with 850 feet of climbing, mostly on singletrack trail.
Field Limit: Only 100 runners will be allowed, so sign up early!

Course Description


$25 for anyone over 12 or running the long course
$10 for kids 12 and under

Online Registration! Go here!
Regular Mail:

Send applicable price from above to Eldorado Trail Run c/o Bill Wright, 1954 Breen Lane, Superior, Colorado 80027. Make the check out to ACE.


Pay: Once you've registered to race, go here to pay if you didn't pay at the end of your registration.

More info: bill@wwwright.com

All proceeds benefit the Eldorado Canyon State Park and Rocky Mountain Rescue Group.