These are some sites I came across while looking for other stuff.
I believe this is the area that the Texas A & M team is doing the in the Gulf underwater exploration of.
They seem to be following some good tracks.
These may give you some idea as to why.
http://www.upf.com/content/MilanichChap1.pdf
http://www.flmnh.ufl.edu/natsci/vertpal ... lla982.htm
http://www.flmnh.ufl.edu/natsci/vertpal ... ucilla.htm
Be sure to check out the coast line shown in the PDF.
Aucilla River, Florida
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