The USCGC Sturgeon Bay (WTGB-109) is a 140-foot icebreaking tugboat operated by the United States Coast Guard. Commissioned in 2004, it is part of the Great Lakes fleet and is designed to assist in icebreaking operations, ensuring safe navigation for vessels during winter months. The vessel is equipped with advanced technology and can perform various missions, including search and rescue, environmental protection, and law enforcement. The Sturgeon Bay is named after the city of Sturgeon Bay, Wisconsin, reflecting its connection to the region it serves.