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The map of North America with the Western Interior Seaway during the Campanian. The Western Interior Seaway (also called the Cretaceous Seaway, the Niobraran Sea, the North American Inland Sea, or the Western Interior Sea) was a large inland sea that split the continent of North America into two landmasses for 34 million years.
The United Lakes of America, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes spanning the Canada–United States border. The five lakes are Superior, Michigan, Huron, Erie, and Ontario (though hydrologically, Michigan and Huron are a single body of water; they are joined by the Straits of ...
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]
American limnologist J. Val Klump was the first person to reach the lowest depth of Lake Superior on July 30, 1985, as part of a scientific expedition, which at 122 fathoms 1 foot (733 ft or 223 m) below sea level is the second-lowest spot in the continental interior of the United States and the third-lowest spot in the interior of the North ...
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 Erie (/ ˈ ɪr i / EER-ee) is the fourth-largest lake by surface area of the five Great Lakes in North America and the eleventh-largest globally. [6] [10] It is the southernmost, shallowest, and smallest by volume of the Great Lakes [11] [12] and also has the shortest average water residence time. At its deepest point, Lake Erie is 210 ...
Map of Lake Huron and the other Great Lakes. Lake Huron (/ ˈ h jʊər ɒ n,-ən / HURE-on, -ən) is one of the five Great Lakes of North America.It is shared on the north and east by the Canadian province of Ontario and on the south and west by the U.S. state of Michigan.
Paleo-Indian cultures were the earliest in North America, with a presence in the Great Plains and Great Lakes areas from about 12,000 BCE to around 8,000 BCE. [citation needed] Prior to European settlement, Iroquoian people lived around Lakes Erie and Ontario, [2] Algonquian peoples around most of the rest, and a variety of other indigenous nation-peoples including the Menominee, Ojibwa ...