Adrift for 38 hours in a life jacket, a Navy peacoat and his underpants, Dennis Hale was the sole survivor of one of the worst shipwrecks in Great Lakes history.
The Soo Locks were once the busiest shipping artery in the world, raising and lowering 1,000-foot ships between Lake Superior and Lake Huron 24 hours a day, 42 weeks a year.
Last winter, Great Lakes sailors suffered the worst ice navigation season in 30 years. Over 95 percent of Lake Superior was covered with blue ice, some of it 50 inches thick.