Are there 5 or 7 Great Lakes?

The Great Lakes are the largest freshwater system in the world. The five Great Lakes - Superior, Huron, Michigan, Erie and Ontario - span a total surface area of 94,600 square miles and are all connected by a variety of lakes and rivers, making them the largest freshwater system in the world.



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Lake of the Woods With around 15.7 million acre-feet of water, the seventh-largest lake in the U.S. also happens to be one of the biggest lakes in Canada. It spans the borders between Minnesota, Manitoba, and Ontario, and comprises more than 25,000 miles of shoreline.

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The Great Lakes are the largest freshwater system in the world. The five Great Lakes - Superior, Huron, Michigan, Erie and Ontario - span a total surface area of 94,600 square miles and are all connected by a variety of lakes and rivers, making them the largest freshwater system in the world.

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Lake Superior is the Cleanest and Clearest Great Lake Because of its somewhat isolated location and long cold winters, not much farming is done along Superior's shores. This means lower amounts of nutrients, sediments, and organic material are floating around the lake.

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Lake Michigan Bordered by Wisconsin, Illinois, Indiana and Michigan, it is the only Great Lake that lies entirely within the boundaries of the U.S.

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Lake Superior is the world's largest freshwater lake by area (31,700 mi2 /82,100 km2). It is also the coldest and deepest of the Great Lakes, with a maximum depth of 406 meters (1,332 feet). By most measures, it is the healthiest of all the Great Lakes.

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Lake Michigan wrecks: the oldest and the mostest Lake Michigan contains more shipwrecks than any of the other Great Lakes, as well as the oldest recorded one: the French ship Griffon, the first European vessel to sail the Lakes.

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At 1,943 feet (592 meters), Crater Lake is the deepest lake in the United States and one of the deepest in the world. The depths were first explored thoroughly in 1886 by a party from the U.S. Geological Survey. Their primitive sounding device consisted of a lead pipe attached to piano wire.

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Top 10 States with the Most Lakes
  • #1: Alaska Lakes (3,000,000) ...
  • #2: Wisconsin Lakes (15,000) ...
  • #3: Minnesota Lakes (11,842) ...
  • #4: Michigan Lakes (11,000) ...
  • #5: Washington Lakes (8,000) ...
  • #6: New York Lakes (7,600) ...
  • #7: Florida Lakes (7,500) ...
  • #8: Texas Lakes (6,700)


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During the 1960s, Lake Erie was declared a “dead lake” due to eutrophication and pollution. The children's book, The Lorax, written by Dr.

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Geology of Lake Inferior Lake Inferior is an underground lake that is located beneath Lake Superior. It is believed to be formed by a process known as karstification, which is the dissolution of limestone and dolomite rock. This process creates sinkholes, caves, and underground rivers and lakes.

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Lake Erie is the shallowest and warmest of the Great Lakes.

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Lake Erie is by far the shallowest of the lakes, with an average depth of just 19 meters (62 ft).

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The water in the Great Lakes is owned by the general public according to the Public Trust Doctrine. The Public Trust Doctrine is an international legal theory – it applies in both Canada and the United States, so it applies to the entirety of the Great Lakes.

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Lake Superior is the largest of the Great Lakes by surface area and volume. It is like a mini-freshwater ocean, you can't even see the other side from the Wisconsin shoreline.

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The entire system flows to the Atlantic Ocean via the St. Lawrence River. As it flows from its westernmost point in Duluth, Minnesota to the Atlantic Ocean, the waterway drops in elevation approximately 600 feet.

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Thus, Lake Huron, the first of the Great Lakes to be discovered, was duly recorded by the white man.

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The Great Lakes are freshwater ecosystems. Traditionally, Lake Michigan, for example, has been a very low-salt lake, with levels around one milligram of chloride per liter of water. Over the years, due to our increased salt use, that level has steadily but gradually climbed up to 15 milligrams per liter.

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