The G3 Marquis visited Duluth/Superior 6 times in 2016, loading iron ore pellets at Burlington Northern on each trip. She was built in China for the Algoma Central Corporation, for use by the Canadian Wheat Board (CWB). Despite that, she often loads iron ore pellets. The pictures here were taken while she was getting fuel at Calumet on April 12, 2016.
Photo below courtesy of Boatnerd. (See comment below from Denny Dushane regarding the name change from CWB Marquis to G3 Marquis, reflecting the name change of the Canadian Wheat Board to G3.)