Shipwreck researcher Ric Mixter will discuss the largest shipwrecks that occurred in the Great Lakes including the freighters Edmund Fitzgerald and the Carl D. Bradley. Mixter has produced more than 30 programs for PBS and the Outdoor Channel and appeared as a shipwreck expert on the History and Discovery Channels. Also, he has served as a SCUBA cameraman on many underwater expeditions to famous shipwreck sites.