Georgia & Florida have the an abundance of the largest rattlesnake....the eastern diamondback.....the one in the pic looks like a Timber Rattler....if he is and it isn't photo-shopped.....that size is all but unheard of....Biggest Timber rattler I know of it about 64"...........that is a big one.
I have seen Diamondbacks at sapelo island pushing 8-8 1/2 feet.
KIP