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​​P.O. Box 880  • Hayfork, CA 96041  •  (530) 628-5223  • Email:

In an effort to continue quality motorsports the Trinity County Fairgrounds has assumed the running of the Fairgrounds Raceway!  We will focus on Enduro Racing and Car Destruction Derbies, we have also added a new Derby format "Truck & SUV Derbies".  Our 1st Enduro Race of the Season will be Saturday, March 18, 2023 @ 2:00pm, "St. Patty's Enduro Race".  The 1st Derby will be at our Bigfoot Pro-Am BBQ Competition, Saturday, May 13, 2023 "Bigfoot Brawl" Truck Derby!  Registration & Rules can be found here or by calling 530-628-5223 or Donny Case at 530-356-2907.

Bigfoot Motorsports 

​(formerly Mountain Valley Raceway)