The geological origins of the Humber River watershed are part of the history of global and continental glaciation colloquially or better known as "The Ice Ages".
The origin of this Canadian Heritage River constitutes a small paragraph in the land form development of both the Great Lakes and the Oak Ridges terminal moraine in Southern Ontario associated with the last Wisconsonian Ice Age that commenced 14,000 years ago.
A synopsis of these events will be presented under the following headings.
Global and Continental Glaciation
Land form development in North America
Geological History of the Great Lakes
Development of the Oak Ridges Moraine
Geography of the Humber River Watershed
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