I'm in Canada and just came across your post/question.
I noticed your pic.. a 4x4'er ehh? Well then all I have to say is MUDFEST 2011!!
(click link to go to http://www.louisianamudfest.com/
All the info is there and there are even vids of Youtube. It's in Colfax, which is right of I49.. then you could head down to Baton Rouge then New Orleans.. or head up to Dallas.. via I49 the I20(West)
I have actually decided from 2011 to 2013 to travel to all the 4x4in Festivals, mudpits and all. Canada and USA then Maybe Mexico! lol
There is a group of us driving to all of 'em with our custom 4x4's..