American Girl Great Lakes Tugs & Workboats

Great Shipwrecks of New York's Great Lakes – H. Lee White Maritime

The Place That Launched a Thousand Tugs

American Tug boats for sale in Great Lakes

Great Lakes building harbor tug for Guatemalan company

Canal Corp. donates retired vessel to educational exhibit

A History Of SACAJAWEA - A 125-Foot Steel Ship Built In 1936

Tug Ohio – National Museum of the Great Lakes

81' Great Lakes Towing Co. Tug Indiana

Tugboat 'Lake Superior' Partially Sinks In Duluth Port - Fox21Online

Tugboat - Wikiwand