Every year in June, a large crowd assembles on an otherwise unassuming farm in rural Wisconsin. A small meadow is filled with water and turned in to a giant mud pit for people to drive their custom-made tough trucks through. What started out twenty years ago with a small group of friends has now become one of the most anticipated days of the year, routinely drawing 1500+ people to spectate, test their rigs, compete for bragging rights and just play in the mud.