NK50k

The NK50k is an annual 50-kilometer point-to-point trail run held in Greenbush, Wisconsin, along the Northern Kettle Moraine Ice Age Trail. The course features a mix of smooth ski trails, rocky and rooty sections, and reaches the highest point in the Northern Kettle Moraine State Forest, offering varied terrain and scenic views. The event starts near Sunburst Ski Hill and finishes at Greenbush Group Camp, where aid stations provide water, sports drinks, and snacks.

Runners enjoy a welcoming atmosphere with post-run food and refreshments. The NK50k emphasizes fun over competition, with no official race results posted. Visit the organization's website for the most recent information.