The Lakeland Terrier was bred to hunt vermin in the rugged shale mountains of the Lake District of northern England. He is a small, workmanlike dog of square, sturdy build. His body is deep and relatively narrow, which allows him to squeeze into rocky dens. He has sufficient length of leg under him to cover rough ground easily. His attitude is gay, friendly, and self-confident, but not overly aggressive. He is alert and ready to go.