What you are looking at here is the first known photo of the fabled bearded terrier of south eastern United States. These creatures are incredibly shy, living in the backwoods of the Georgia mountains.
It is said that a regular old hound dog fell into a vat of 100 proof moonshine and swam a few laps. Then miraculously his beard began to grow like those Duck Dynasty guys. I have no idea if that is true, but these are amazing looking animals.