On a starry night, the 730-foot Canadian Leader, the last bulk- carrying steamship built on the Great Lakes, slips silently past illuminated buoys near Montreal on a five-day voyage up to Thunder Bay, Ontario, on Lake Superior.
After unloading titanium ore at the St. Lawrence River port of Sorel, the ship is proceeding empty toward the upper lakes. With the recent economic downturn, there is less demand for her typical upbound cargo of iron ore pellets. Capt. George Wheeler, a 40-year veteran of the sea originally from Northern Ireland, has taken on freshwater ballast from the river, to maintain the ship's stability and maneuverability.
Taken together, the Great …