The Coast Guard Cutter 'Mackinaw' breaks ice in Western Lake Superior in preparation for the upcoming shipping season.
The Mackinaw (WLBB-30) is the only U.S. heavy ice breaking resource assigned to the Great Lakes and in addition to heavy icebreaking other missions of the crew include servicing buoys, search and rescue, law enforcement, and the ability to deploy an oil skimming system to respond to oil spill situations.
The 240-foot Icebreaker is homeported in Cheboygan, Michigan