Youngest Musher Ever Participating In 2021 MN Beargrease Sled Dog MarathonYoungest Musher Ever Participating In 2021 MN Beargrease Sled Dog MarathonThe 40th John Beargrease Sled Dog Marathon kicks off on January 31 and will feature one of the youngest racers ever in the history of the race.Jeanne RyanJeanne Ryan