Sheets of thick ice are created by the Coast Guard Cutter Mackinaw during ice breaking operations, March 22, 2018. The U.S. and Canadian Coast Guards helped break ice on Whitefish Bay and Lake Superior ahead of the opening of the Sault Ste. Marie Locks March 25th, the start of this year’s shipping season. (U.S. Coast Guard photo by Master Chief Petty Officer Alan Haraf)