On May 2016, the US-flagged lake freighter (laker) Roger Blough ran aground near the Gros Cap Reefs Light, off Sault Sainte Marie, Ontario, Canada. There were no injuries and no pollution reported, but the vessel sustained $4.5 million in damage to its hull and cargo system. The US NTSB issued an investigation report on the accident, providing a description of what happened. The incident On May 26, 2016, the Roger Blough departed Superior, Wisconsin, en route to Conneaut, Ohio, a voyage of 890 miles. The vessel was loaded with a cargo of 45,093 tons of taconite iron ore pellets. The vessel’s intended route, which was programmed into the ship’s electronic chart precise integrated navigation system (ECPINS), closely followed the Lake Carriers’ Association (LCA) recommended downbound trackline for Lake Superior. On the same day, the Canadian-flagged laker Tim S. Dool, in ballast, lost all electrical power and propulsion approximately 65 miles northwest of Whitefish Point in ea...