It can last as long as the people want it to, or until the dogs or the racers themselves die.
Dog sledding
It is called the Iditarod race
dog sledding
its the last dogs closest to the sled. they are the strongest so they can pull the sled along
Well whenever it snows and there is a dog sledding tournament.
There is no patron saint of dog sledding.
A dog sled is "un traîneau à chien" in French. To go / to do dog sledding is "faire du traîneau". A dog-sledding trip is "une randonnée en traîneau [à chien(s)]"
it is where a dog pulls a sled
The fewest dogs you can run with is at least 10. At the start of the race you must at least has 12 dogs in order to start the race
dog sled racing
the north pole
Alaska