A team of underwater archaeologists from across the country, led by James Adovasio and Andy Hemmings of Mercyhurst University, will be diving at two sites off Florida?s Gulf Coast that was first visited in 2009. At each of these locations, electronic documentation was made of intact river channel features of the Pleistocene Suwannee River which are now filled with multiple layers of sediment. This previous work has helped to decide exactly where the team excavated through the sands of the modern seafloor.