While we lived in Missouri I found everything from Osage Copperheads, Timber Rattlesnakes, King Snakes, Rat Snakes, Worm Snakes, Midland Browns, Garters, Ring-necks, etc.
Here are a few of my favorite photos I shot. Please keep in mind, I had a cheap kodak at the time.
Eastern Yellow-bellied Racer (Coluber constrictor flaviventris)
Diamond-backed Water Snake (Nerodia rhombifer rhombifer)
Pair of Eastern Garter Snake (Thamnophis sirtalis sirtalis)
Western Worm Snake (Carphophis vermis)
Black Rat Snake (Elaphe obsoleta)
I have more pictures, but I didn't want to flood the thread.