Australian Cattle Dogs, widely called Blue Heelers, were developed in nineteenth-century Australia to drive cattle across long distances. They're compact, muscular dogs, usually 35 to 50 pounds, with a short, dense, rain-resisting double coat in blue or red speckle. That coat is a good match for the dry, cold high country around Idaho Falls, which sits at about 4,700 feet.
Heelers tend to be loyal, clever and alert, often attaching to one person and staying wary of strangers. Their herding instincts can show up as nipping at heels or chasing bikes, kids and other pets. They usually mature around age two, and with training and a real job to do, many become devoted, hardy companions that live well into their teens.