The Treeing Walker Coonhound is a breed of hound descended from the English and American Foxhounds. The breed originated in the United States when a dog known as 'Tennessee Lead,' was crossed into the Walker Hound in the 19th century. The Treeing Walker Coonhound was recognized officially as a breed by the United Kennel Club in 1945 and by the American Kennel Club in 2012.