A herd of bison stampeded onto the prairie during Belwin Conservancy's bison release Saturday, May 20. The annual event is in its ninth year and has gained popularity over time according to Belwin's executive director, Nancy Kafka. "Around 250 people came the first year," she said. "Last year we were over 1,000." Kafka said one of the main draws to the event is its length. Being such a short event, people can stop by and see the bison get released and then come back later to see them again when the weather is optimal.