While competing for Norway at the 1952 Olympics, Stein won the gold medal in the giant slalom and silver in the slalom. He came to Colorado shortly after to run the ski school at Aspen Highlands. When Snowmass opened, he was hired to run the ski school there. His aerial forward somersault, or Moby flip, marked the beginning of modern freestyle skiing. He continues to be one of the best-known skiers in the world.