Not recreational sleds, but more like working sleds, carts/wagons that were pulled in the snow. What were they called?

I grew up on beaches and recently moved to somewhere where there is a lot of snow in the winter. I have a lot of these giant inflatable rafts and suc...

dont worry i'n not going to do that... im just wondering....how do people train them? will the dog pull on its leash too when you try to walk it?