Copperhead + Timber Rattler
Years ago I did my Army basic training at Ft. Polk, Louisiana. I'd just been on post a couple of days and picked up the post newspaper to find a photo on the front page of a rattlesnake some guy caught while out on bivouac. He was holding it by the head with his arm straight out from his body and the snake's tail was dragging on the ground.
Found out there were four types of snakes on post: rattlers, copperheads, water moccasins and coral snakes. All poisonous.
Fun place not to be!