The USCGC Mackinaw (WLBB-30) is a heavy icebreaker operated by the United States Coast Guard. Commissioned in 2006, it is named after Lake Michigan's Mackinac Island and is designed to assist in icebreaking operations in the Great Lakes. The vessel is equipped with advanced technology to navigate through thick ice and ensure safe passage for commercial shipping. The Mackinaw plays a crucial role in maintaining navigable waterways during winter months, supporting the economy by facilitating the transport of goods. It also conducts search and rescue missions, environmental protection, and aids in law enforcement on the Great Lakes, contributing to the safety and security of the region.