1 / 3   A dog named Dozer pulls beer kegs over the snow during the Monster Dog Pull at Red Lodge Ales at Sam's Tap Room in Red Lodge, Montana, US on Sunday. /VCG Photo

2 / 3   Over 40 dogs with their human companions took part in the competition. /VCG Photo

3 / 3   The first dog to complete all 11 rounds wins the ultimate prize – treats and toys /VCG Photo