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The Great Lakes as seen from space. The Great Lakes are the largest glacial lakes in the world. The prehistoric glacial Lake Agassiz once held more water than contained by all lakes in the world today. A glacial lake is a body of water with origins from glacier activity. They are formed when a glacier erodes the land and then melts, filling the ...
The Great Lakes are estimated to have been formed at the end of the Last Glacial Period (the Wisconsin glaciation ended 10,000 to 12,000 years ago), when the Laurentide Ice Sheet receded. [10]
During the Late Pleistocene, the Laurentide ice sheet reached from the Rocky Mountains eastward through the Great Lakes, into New England, covering nearly all of Canada east of the Rocky Mountains. [8] Three major ice centers formed in North America: the Labrador, Keewatin, and Cordilleran. The Cordilleran covered the region from the Pacific ...
Lake Agassiz (/ ˈ æ ɡ ə s i / AG-ə-see) was a large proglacial lake that existed in central North America during the late Pleistocene, fed by meltwater from the retreating Laurentide Ice Sheet at the end of the last glacial period. At its peak, the lake's area was larger than all of the modern Great Lakes combined. [2]
Nipissing Great Lakes: 5,500 [9] - 4,500 YBP [10] Lake Nipissing; 8,400 – 5,500 YBP formed as the water bodies in the Superior and Huron basins merged across Sault Ste. Marie around 8,400 YBP and then merged with the Michigan basin around 7,800. [1] Glacial Lake Algonquin; 9,000 – 7,000 YBP [10]
Lake Chicago was a prehistoric proglacial lake that is the ancestor of what is now known as Lake Michigan, one of North America's five Great Lakes.Formed about 13,000 years ago and fed by retreating glaciers, it drained southwest through the Chicago Outlet River.
Glacial lakes of the Sawtooth National Forest (1 C, 99 P) Pages in category "Glacial lakes of the United States" The following 95 pages are in this category, out of 95 total.
The glaciers destroyed or disturbed most of the preglacial drainage patterns and enlarged and deepened the Erigan basin. Lake Maumee is the first of a series of glacial lakes which occupied the Erie basin. It was preceded by a few small, disconnected lakes which lay between the ice margin and the southern divide of Erie basin. [3]