The report concerns the effects of water quality upon the fish and wildlife resources of the Lake Huron Basin. A knowledge of environmental, or habitat factors is an essential part of any sound management program for Great Lakes' fish and wildlife. Closely allied to this discipline is the chief interest of this comprehensive report, water quality. Lake Huron is one of the least studied of the Great Lakes and relatively little is known concerning its habitat base. The report summarizes published information accumulated primarily since the early 1950's and data collected by the Bureau of Commercial Fisheries but not yet published.