[s7e5] Ghost Ship Of The Great Lakes -

: A separate investigation into missing WWI minesweepers in Lake Superior.

The Griffon was the first full-sized sailing ship to navigate the upper Great Lakes, built in by the French explorer Robert de La Salle . [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