My son saw a snake yesterday. It was black with yellow markings along the lower portion of its sides. He said that the yellow markings were more like slashes than continuous lines. (I am wondering if the snake's position gave the illusion that the yellow markings were not continous.) The snake was coiled but did not raise its head. We live in Maryland on the eastern edge of the mountains. The area is wooded. I thought it might be a ring-neck but DS said there was no ring around the snake's neck. Now I am thinking maybe a queen snake. What do you think?