The USCGC Mackinaw widens a channel through the ice near the docked John G. Munson by steaming along a path it had broken out earlier Sunday morning. The Mackinaw was in the Twin Ports over the weekend to help break ice in preparation for the upcoming shipping season. (Steve Kuchera / skuchera@duluthnews.com)
Read the article: Mackinaw prepares lanes for upcoming shipping season
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