MIDAlpha TitleTitleYearColor/BWRunning TimeFormatsAbstractTopics
2446RISE AND FALL OF THE GREAT LAKESRISE AND FALL OF THE GREAT LAKES1969color17 min16mm A lesson in Canadian geography which concludes that though the Great Lakes have had their ups and downs nothing has been harder to take than what man has done to them lately. A lone canoeist lives through all the changes of geological history, through ice age and flood, only to find himself in the end trapped in a sea of scum.