Appearance: Large, 36 to 60 inches long, with a triangular head, vertical pupils, and a rattle at the end of the tail. Usually gray with a black tail, but can also be yellow, tan, brown, pink, dark brown, or black, typically with a rust-colored stripe down the back. Black chevron-shaped crossbands occur all down the body.
Typically found: Heavily wooded forests, around mountains and swamps
These snakes look similar to cottonmouths, but come in bright colors, ranging from coppery brown to bright orange.