Every spring since 1954, Knox College students and faculty have taken part in a one day event that helps bring new life to an old prairie. The event is so popular that the school's sports teams derive their nickname from it.
From the air, the Midwest looks like a patchwork of cropland and pastures. But before the land was turned over to plows and center pivots, most of it was a sea of grass.
Rod Christen and his sister Kay farm corn, soybeans, and wheat on the family’s land near the small town of Steinauer in southeast Nebraska, but their main crop is grass.