What Dartmouth event inspired a Hollywood movie, triggered an 8-mile traffic jam on the roads leading into Hanover in 1952, and was called “the Mardi Gras of the North” by National Geographic? If you guessed Dartmouth’s Winter Carnival, you are correct! Winter Carnival has evolved over the years, with events coming and going, such as a formal dance that is no longer held. But one thing remains constant: Winter Carnival at Dartmouth is still one of the greatest cold-weather celebrations.