JWFishers PT-1 Pinpointing Magentometer from - Diving on La Salle's "Griffon"
(From the David Ruck Video) For better than 30 years, Steve Libert and a team of explorers have been searching for the famed sailing ship "Le Griffon", which sank in the Great Lakes in 1679. For the past 12 years, the team has been fighting to identify a strange piece of wood at the bottom of Lake Michigan, which early examination suggests could be a bow sprit or mast from the missing vessel. Carbon testing, sub-bottom profiling, and sonar scanning have not ruled out this possibility. In fact, something IS lying below this strange artifact, waiting to be examined in detail.