Have you ever met a Husky?
The type of husky that has a really thick coat and distinctive markings? 
Yes!  I have a female.  She is beautiful, except she sheds a ton.
I can imagine! Do you work with her to do sled dog races? 
I do not.  Her father was a champion sled dog.  I got her from the best breeder in town.  
I wonder if her father had any bloodlines in common with the famous sled dog Togo? 
The breeder claims that my girl is 4 generations of champions.  I wouldnt doubt she was related to Togo.
I have always enjoyed the history of the Serum run to Nome. It was one of my favorite books as a child. It always made Huskies seem so wild and adventurous to me. 
Beautiful story that book is.  I make sure to get my girl plenty of exercise so she stays active and not bored.  They do have a wild spirit about them.
I think they would be hard to wear out. It would take a lot of stamina to cover that much time and distance. Very high energy working dogs.