No, the Mammoth Gravel Classic is not May 2nd. The travelwisconsin.com page has bad info. That is the Woolly Bike Race on the Woolly single track trails.
World class mountain bike trails and groomed single track fat biking don't build or groom themselves.  The Woolly Bike Club's volunteers have been working on building and maintaining singletrack in St. Croix Falls since 2008.
Our network of trails has grown to include 7.5 miles of singletrack and more than a 6.5 mile Groomed Singletrack loop for fat biking during Winter months.  With this growth, come need for funds.  Your donations to the Woolly Bike Club are:
  • All used to build & maintain mountain bike singletrack and for grooming singletrack during Winter
  • 100% tax deductable - Woolly is a 501c3 non-profit, and a Chapter of IMBA
  • Supporting a grass-roots, community based organization
DONATE TO WOOLLY BY CLICKING THE DONATE BUTTON BELOW
Or you can send a check payable to Woolly Bike Club to our PO Box
PO Box 1114, St. Criox Falls, WI 54024