Usually people coast over the hills of Coffee Mill Ski & Snowboard Resort on terrain covered with fresh powder. But during the Grumpy Muddah 5K, runners tackle the steep slopes on foot instead, and end up covered themselves—in wet mud. That's because the course has obstacles that might challenge participants to carry dirty logs down a hill or slide on their bellies through muddy water. The obstacles tend to be easier to complete with a team (you can register in a group), but those running solo can skip any obstacle that proves too difficult or requires a human pyramid to complete.

The event, which helps raise money for the Wabasha Ambulance Service, culminates in an after party that includes one free beer for each of-age participant, a T-shirt, and a medal, as well as various food options.