On April 18, 1922, she departed Sault Ste. Marie, Ontario with keepers for the lighthouses at Ile Parisienne, Caribou Island, and Michipicoten Harbour.[1][2] She traveled through Whitefish Bay in the company of two other vessels, Glennfinnan and Glenlivet, and sometime during the day Lambton and Glennfinnan collided.[2]Lambton also broke her steering gear, and was forced to proceed with improvised repairs.[2] On the following day, after Lambton had turned north away from the other two ships, a storm blew into the area, with winds as high as 60 miles per hour (97 km/h).[1] Following the storm, it was reported that the lighthouses Lambton had been scheduled to visit were not lit, and a tugboat was dispatched to follow her route to attempt to determine her fate.[1] After almost a week of searching passed with no sign of the ship, Lambton was declared lost.[1][3]