Border Collies were developed by shepherds along the Anglo-Scottish border, who valued dogs that could read a flock and work at a distance using a steady stare, a crouch and a whistle. Today they're medium-sized, usually 30 to 55 pounds, with a rough or smooth double coat in black and white and many other colors.
In Casper, that history shows up as a dog that wants a job. Fetch along the river, trick training in the living room and scent games on a snowy day all count. Many are devoted to their families and reserved with strangers, though temperament varies from dog to dog. Shedding is moderate and heavier in seasonal blows, so keep a brush handy.