: A separate investigation into missing WWI minesweepers in Lake Superior.
: To establish a fur-trading empire and find a westward route to Asia. [S7E5] Ghost Ship of the Great Lakes
: The investigation focuses on the notoriously rough waters of Lake Huron and Lake Michigan . : A separate investigation into missing WWI minesweepers
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 Episode 5 )