There's a reason that there's a statue of Balto in Central Park, so in case you don't know why, here you go:
Balto (c.1919-14 March, 1933) was a Siberian Husky sled dog (although some sources incorrectly state that he was an Alaskan Malamute) who led his team on the final leg of the 1925 serum run to Nome, in which diphtheria antitoxin was transported from Anchorage, Alaska to Nenana, Alaska by train and then to Nome by dog sled to combat an outbreak of the disease.
Youtube: Balto TrailerListen: History Of Balto on American Storyteller