sledge dog

US /ˈsledʒ dɔːɡ/
UK /ˈsledʒ dɔːɡ/
"sledge dog" picture
1.

a dog of a breed originally used to pull sledges over snow, especially in the Arctic

:
The team of sledge dogs pulled the explorer's gear across the frozen tundra.
Huskies are a common breed used as sledge dogs.