Valleyfair is a 125-acre (51 ha) amusement park located in Shakopee, Minnesota, USA and is currently the largest amusement park in the Upper Midwest United States. Valleyfair offers 8 roller coasters. The fastest coaster can reach up to 55 mph, which is about the average speed for a roller coaster. One of these rides has a vertical drop of 100 feet.