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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] Lake Stanley-Hough; 8,700 YBP, the water levels had risen to connect both Lake Stanley and Lake Hough into a single body of water. [1]
Watersheds of North America are large drainage basins which drain to separate oceans, seas, gulfs, or endorheic basins. There are six generally recognized hydro-logical continental divides which divide the continent into seven principal drainage basins spanning three oceans ( Arctic , Atlantic and Pacific ) and one endorheic basin.
The area of some lakes fluctuates substantially. For those lakes partially in Canada or Mexico the area given for the lake is the total area, not just the part of the lake in the United States. Of the top 100 lakes, 55 are man-made and 45 are natural. Two lakes in the top 100 are primarily salt water, and two are primarily brackish water.
The Great Basin's longest and largest river is the Bear River of 350 mi (560 km), [10] and the largest single watershed is the Humboldt River drainage of roughly 17,000 sq mi (44,000 km 2). Most Great Basin precipitation is snow, and the precipitation that neither evaporates nor is extracted for human use will sink into groundwater aquifers ...
largest of the Finger Lakes: 24: Yellowstone Lake: Wyoming: 12,095,264 acre⋅ft (14.9 km 3) 390 ft (119 m) highest in elevation of large lakes 25: Lake Franklin D. Roosevelt: Washington: 9,402,000 acre⋅ft (11.6 km 3) 349 ft (106 m) man-made. Created in 1941 by the impoundment of the Columbia River by the Grand Coulee Dam: 26: Cayuga Lake ...
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.
During the last glacial maximum, northern North America was covered by an ice sheet, which alternately advanced and retreated with variations in the climate.This continental ice sheet formed during the period now known as the Wisconsin glaciation, and covered much of central North America between 30,000 and 10,000 years ago.
Highest navigable lake in the world. Greatest mountain lake too. Largest lake in South America. 19: Nicaragua Nicaragua: Fresh 8,264 km 2 3,191 sq mi 177 km 110 mi 26 m 85 ft 110 km 3 26 cu mi Largest lake in Central America. Contains fresh water sharks. 20: Athabasca Canada: Fresh 7,850 km 2 3,030 sq mi 335 km 208 mi 124 m 407 ft 204 km 3 49 cu mi