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History and Geography of the Great Lakes

There is no denying the presences of the Great Lakes, not only are they unavoidable, but they have also been a major player in the growing of civilization in North America and Canada. A person would have to live under a rock, no pun intended, to not know about these phenomenons. Most would ask from where did these Great Lakes come? How did they form? How are they beneficial? What are some of the Great Lakes here? A Great Lake is an extremely large inland freshwater sea, which is amazing since we are surround by oceans occupied with salt water. The Great Lakes are the largest system of fresh surface water on Earth, which makes them vital to our survival. However, they have been subject to damage by pollutants. There are five lakes in North America, which are: Lake Michigan, Huron, Erie, Superior, and Ontario. Not many people take the time to try to understand our Great Lakes or the importance of them. Coming to understand what these Great Lakes are, how they got here, and how they are beneficial to our ecosystem will ultimately help us further appreciate their vital diversity and encourage us to preserve them.
The foundation of the Great Lakes began around three billion years ago, which is known as the Precambrian Era. The Precambrian Era contains numerous ecological events, which consists of volcanic activity to erosion to the mountains and hills seen today being formed. Then during the Pleistocene Epoch or known as the “Ice Age, occurred between 1.6 million and 10,000 years ago. At least four times during the Pleistocene Epoch, large masses of ice advanced and retreated over the surface of what is now North America. As the glaciers advanced, giant sheets of ice flowed across the land, leveling mountains and carving out massive ...

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