It was definitely a pretty snake. Looks like a fairly young one, judging by the rattle? The picture I put on my previous reply to you was also off a trail within the national park. It's good to know the canebrakes and moccasins are still thriving in that area! I live in Greenville, SC and I do a lot of herping in the lower part of the state if you ever want to meet up to do some searching.

Justin