Marker #4 of Lake St. Clair's shipping channel stands out in the distance as an MH-65C Dolphin helicopter crew from Coast Guard Air Station Detroit hovers over the ice-covered lake while conducting ice rescue training Feb. 12, 2014. Also clearly visible is the channel recently cut by an icebreaker.
U.S. Coast Guard photo courtesy Air Station Detroit
Taken on 12 February 2014
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