The Coast Guard ship USCGC Mobile Bay pulling channel buoys for the upcoming winter on the Bay of Green Bay. Nov. 20, 2015. Her primary mission is icebreaking from mid-December through mid-April in the Northern Lakes, operating mostly in Green Bay, the Straits of Mackinac and the St. Mary’s River. Other missions include maritime law enforcement, search and rescue, environmental pollution response, and homeland security.
