From IRONBULL's 'Mission +Goals' section on the main website:

"From The IRONBULL™ is a 501(c)(3) non-profit corporation that hosts extreme endurance, running, paddling, biking, adventure, cross-country skiing and snowshoeing races. Central Wisconsin is home to a young and growing community of extreme sports enthusiasts, where active and healthy living is an integral part of who they are and competition is a way of life."
Winter Triathlon | January 26, 2020 | Nine Mile County Forest Recreation AreaWeb Sized - Winter Triathlon | January 26, 2020 | Nine Mile County Forest Recreation Area