I agree most don't know their snakes. Copperheads, cotton mouths, and rattle snakes are all viper snakes and especially copper heads tend to be short and have much fatter bodies that most snakes. I big copperheads may only be 3 or 4 feet long but as big around as your arm. I have only seen one and have lived in KY all my life going on 50 years and it was out at the boy scout camp at Bernheim. I saw a snake once on a creek that I thought might have been a cotton mouth but I am not for sure...