ArcheologyAucilla/ Wacissa WatershedNative CultureRivers and Streams Archeology on the Wacissa: Solving Underwater Mysteries by Rob Diaz de Villegas June 17, 2015 by Rob Diaz de Villegas June 17, 2015 Volunteering on Wacissa River excavations led to a Tallahassee man entering a Ph.D. program at Texas A&M. We visit his 12,000 year old site, being dug now.