: The investigation focuses on the notoriously rough waters of Lake Huron and Lake Michigan .
: To establish a fur-trading empire and find a westward route to Asia. [S7E5] Ghost Ship of the Great Lakes
In the Expedition Unknown episode "" (widely listed as Season 6, Episode 5 ), host Josh Gates hunts for the Griffon , often called the "Holy Grail of Great Lakes shipwrecks". The Historical Mystery : The investigation focuses on the notoriously rough