It is estimated that 24,000 years ago, a thick glacier moved from the north and covered the land where this state park is located. During this event, known as the "Wisconsin Ice Age," the southward-moving glaciers eroded the soft soil, flattening the area. The park is adjacent to National Highway 422 and is easily accessible, but pay attention to the route signs within the park to avoid getting lost. There are many strangely shaped rocks inside; remember to watch your step.