USCGC BISCAYNE BAY (WTGB-104)
The USCGC BISCAYNE BAY (WTGB-104) is a 140 foot Bay-class Icebreaking Tug homeported in Saint Ignace, Michigan. The primary mission of the BISCAYNE BAY is to maintain tracks in the connecting waterways in the Great Lakes and assisting vessels through the icebound shipping lanes of the Great Lakes. Her primary areas of operation are the Straits of Mackinac and the St Marys River. The cutter also frequently operates in the St. Clair/Detroit River system, Green Bay, Duluth, Minnesota, and Thunder Bay, Ontario.