In this June 6, 2013 photo, Steve Libert, president of Great Lakes Exploration Group, stands near the Traverse City, Mich., marina on Lake Michigan. On Saturday, June 15, 2013, Libert will lead a ... more 
In this June 6, 2013 photo, Steve Libert, president of Great Lakes Exploration Group, stands near the Traverse City, Mich., marina on Lake Michigan. On Saturday, June 15, 2013, Libert will lead a diving expedition to an underwater site in northern Lake Michigan where archaeologists and technicians will try to determine whether timbers he found while diving in 2001 are what remain of 17th Century French explorer La Salle's legendary Griffin. (AP Photo/John Flesher) less 
1 / 30
Associated Press | Photo By John Flesher
Thu, Jun 13, 2013 1:29 PM EDT