春の訪れが近づく中、USCGC Sparがダルース港の氷を砕き、五大湖の航行シーズンに備える

On March 9, 2026, the U.S. Coast Guard Cutter Spar began icebreaking operations in Duluth-Superior Harbor, signaling that the long winter grip on Lake Superior is slowly loosening as the Great Lakes shipping season draws closer.

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