From the Lawrence Daily Journal-World for Jan. 29, 1972:

Kansas Day fell on a Saturday in 1972, and the weather was crisp and cold. Three Kansas University women were photographed enjoying a coast down Campanile Hill on a plastic sled. Recent precipitation in the form of icy pellets had given the snow a very slick surface for sledding. However, KU officials were warning the public that despite several days of below-freezing temperatures, the ice on Potter Lake was “definitely not safe for ice skating.” Steve Swale, a KU senior who had played some ice hockey at his Indiana high school, was pictured trying his form on the frozen pond in Central [now Buford Watson] park. He had told the photographer that he was hoping that enough people would show up to form a team.