This snake was fast and not a bit intent on hiding. It raced around a 10 foot square of ground like it had lost something and was frantically looking for it. Perhaps I had disturbed a meal. I think it's an Eastern Rat Snake, which would make it hungry for some small mammal or perhaps a bird.
It was not in the least bit scared of me and would race towards me and then back off. They're not to be feared, although at over 5 feet long, I kept my distance.