"Le Griffon" is considered by some to have been the first ship lost on the Great Lakes. It was another vessel used by La Salle and Tonti, however, that was the first loss on 8 January 1679. As noted above, sources give its size as either 20 tons or 40 tons. It dragged anchor and ran aground near Thirty Mile Point on Lake Ontario, where it broke apart. Some say that this vessel was named the "Frontenac", while others say the other vessel used on La Salle's expedition was "Frontenac". Some sources confuse the two vessels.