The Treeing Walker Coonhound is a lean, muscular, athletic hound with soft, drooping ears and a gentle expression. The coat is short, smooth and glossy, most often tricoloured in white, black and tan. In temperament it is friendly and even-natured with people, but it is also energetic, persistent and very vocal, and it follows a scent with real single-mindedness.
The Treeing Walker Coonhound became a distinct breed in the American South, where coon hunters wanted a fast, keen-nosed hound that would find and tree its quarry quickly. For years it was grouped with the English Coonhound before its breeders sought separate recognition. The American Kennel Club admitted it to full recognition only in the early twenty-first century, long after it had become a fixture of hunting in the United States. It was bred to work at night, following the scent of a raccoon, driving it up a tree and staying at the base, baying, until the hunter arrives. Its voice is part of the job: hounds may have a clear, ringing bugle or a short, rapid chop, and the bark often changes at the tree, so hunters can follow the chase from a distance. The breed is widely used in organised night hunts held as competitions.