Coast Guard icebreaker prepares for shipping
DULUTH, Minn. (AP) — The U.S. Coast Guard's 240-foot-long ship Mackinaw is busy breaking ice in the Twin Ports in preparation for the upcoming shipping season.
The huge ship is the largest U.S. icebreaker on the Great Lakes. Cmdr. Mike Davanzo says 10 officers and 46 enlisted members serve on the Mackinaw.