Fun begins where the pavement ends


2018 will mark the 6th year that bikes have been around the Rattlesnake Mountain Range!

The 120 mile course starts at 6am at Poison Spider School (about 8 miles west of Casper) and travels on 10 miles of pavement before the road turns to gravel. For the next 40 miles, riders are mostly going uphill along loose gravel, dirt and hardpack gravel as you travel to the first aid station (at mile 51) and the first turn of the race.  Riders loop around the western edge of the mountain range and will begin to descend Southeast towards Pathfinder reservoir. Enjoy these 25 miles on mostly dirt road with a mix of gravel and larger cobble road with a few long sections of sandy road with great views and rolling hills.

It is VERY rare to see any human life this far out in the middle of nowhere. In 2013, I did not see one single vehicle in the 105 miles of gravel. In 2014, we saw 2 vehicles the entire time. Riders will find themselves at hwy 220 around mile 85 and you can enjoy 5 miles of smooth pavement on wide lanes with rumble strips. Aid station number two is at mile 90 and is our turnoff to Old Oregon Trail Road to the Northeast.

The next 30 miles are glorious! You'll point yourself northeast and go uphill slightly on good gravel road for 6 miles followed by a crazy fast 8 miles of descending along mostly dirt road. Pedal your way the final 15 miles back to Poison Spider School on mostly dirt road and BAM, you made it!!

Safety is important for us.  Along with your registration, you will find great aid stations along the route to keep you hydrated and fueled up.  There will also be a support vehicle that will follow the racers to make sure everyone has a safe day.

Aid stations and support brought to you by Crazy Pedaler Bicycles and many volunteers from the United Church of Christ - Casper.  Thanks to their generosity you can feel safe that friendly faces and even a ride home (hopefully you won't need it) are just around the corner!

We aim to provide you with a fun day in the saddle.  Well stocked aid stations.  Drop bags if you need it.  Awesome volunteers.  Free cold drinks and chips at the finish line.  CASH PAYOUT to the top three men and women in the 120 miler.  Great awards with tons of swag and a killer afterparty with free food and live music!! 

Subtract $10 until April 1. We don't want ALL your money.  We just want enough to make the event one you'll remember!

The WGGS is a series of five gravel grinders in Wyoming.  The series begins in Casper, then on to Sheridan, Gillette, Centennial and finishes in Lander.  Much more than just a series for bragging rights, the top three men and women in the series will receive CASH!!  To earn that loot, complete as many of the long courses in the series as you can.  Your best three scores will be tallied for your series overall.  After the final race in Lander is completed, we will be able to crown the top grinders of Wyoming! 

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At a Glance
  • 19 May 2018 6:00am
  • Tickets On Sale
  • Rattlesnake Rally Gravel GrinderRattlesnake Rally Gravel GrinderCasper, Wyoming, USA
  • Up to 119 miles (192 km)
  • From 40.00 USD
9664 Oregon Trail Rd,Casper,Wyoming,82604,USA