: The team utilizes a state-of-the-art two-man submersible to dive to potential wreck sites on the lake floor.

: While the Griffon remains elusive, the episode explores several "ghost ships" that have been preserved by the cold, deep waters of the lakes, such as the Cornelia B. Windiate . Related Episodes

: An episode focusing on a plane that disappeared over Lake Michigan in 1950.

: On its maiden voyage in September 1679, after offloading La Salle, the ship set sail for Niagara to trade furs and was never seen again.

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

: To establish a fur-trading empire and find a westward route to Asia.

Josh Gates joins several maritime experts and historians, including , Joan Forsberg , and Brendon Baillod , to search for the wreckage.