USCGC Mackinaw (WLBB-30)

USCGC Mackinaw (WLBB-30) is a modern United States Coast Guard heavy icebreaker commissioned in 2006 to replace the original USCGC Mackinaw (WAGB-83), which served from World War II until 2006. Homeported in Cheboygan, Michigan, WLBB-30 is specifically designed for icebreaking operations on the Great Lakes, ensuring the safe passage of commercial shipping during harsh winter months. The cutter also performs search and rescue, law enforcement, and environmental response missions in the region. As the only heavy icebreaker assigned exclusively to the Great Lakes, the Mackinaw plays a crucial role in maintaining year-round economic activity and maritime safety in the area.