The crew of the Coast Guard Cutter Mackinaw approach the barge PML 9000 backward in order for the cutter's prop wash to help break the ice around the barge after it became stuck in the St. Marys River, Dec. 17, 2013. The crew of Mackinaw freed the barge and both tugs that were escorting it through the St. Marys River. (U.S. Coast Guard photo by Ensign Michael Cooper)
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