A common large North American marmot (Arctomys monax). It is usually reddish brown, more or less grizzled with gray. It makes extensive burrows, and is often injurious to growing crops. Called also ground hog.
reddish brown North American marmot
a common burrowing rodent (Marmota monax) of northern and eastern North America, that has a short-legged, heavy-set body and grizzled brownish fur