The Alligator was an amphibious machine designed and patented in Canada in the late 1880s. This warping tug was capable of towing a log boom across a lake and then portaging itself to the next body of water. Steam-powered and rugged, it was one of the pioneers in the mechanization of the forest industry and for more than thirty years was ubiquitous in northern Ontario until eclipsed by its worthy successor the Russel tug. "This long-overdue book on the Alligator Warping Tug, designed and built by West & Peachey of Simcoe, Ontario, is a welcome addition to the libraries of those intrigued by Canada’s story and particularly lumbering history." — R. John Corby, curator emeritus, Canada Science and Technology Museum "By enabling access to the upper reaches of the Ottawa River and its many tributaries, the Alligator tug extended the social and economic stability provided by the timber industry and supported the populating of this vast region. Alligators of the North is a wonderful touchstone for all who share this heritage." — Mary Campbell, mayor of McNab-Braeside Township, Renfrew County