lake superior depth

Lake Superior's water level was at a new record low in September 2007, slightly less than the previous record low in 1926.

No wonder ours is called Superior. In 1918 the last warships to sink in the Great Lakes, French minesweepers Inkerman and Cerisoles, vanished in a Lake Superior storm, perhaps upon striking the uncharted danger of the Superior Shoal in an otherwise deep part of the lake.

The surface area of Lake Superior is about the same as the surface area of Maine, which is about the same as a huge hunk of the Eastern United States stretching all of the way from Virginia to Northern Massachusetts? Explore the Depths of Lake Superior. Thanks for the note! more than 1 year ago. Maine is so tiny!

[7] There is enough water in Lake Superior to cover the entire land mass of North and South America to a depth of 30 centimetres (12 in). Omissions? Lake Superior. The first European to see Lake Superior was probably the French explorer Étienne Brûlé in 1622. [citation needed] This variation in temperature makes the lake seasonally stratigraphic. This article will tell you all about Lake Superior's volcanic past: http://www.lakesuperior.com/the-lake/natural-world/243-lake-superior-basin-fiery-beginning/, Lake Superior Magazine

Wreckage of SS Cyprus—a 420-foot (130 m) ore carrier that sank on October 11, 1907, during a Lake Superior storm in 77 fathoms (460 ft or 140 m) of water—was located in August 2007. After the arrival of Europeans, the Anishinaabe made themselves middle-men between the French fur traders and other Native peoples. In addition, many fish species have been either intentionally or accidentally introduced to Lake Superior: Atlantic salmon, brown trout, carp, chinook salmon, coho salmon, freshwater drum, pink salmon, rainbow smelt, rainbow trout, round goby, ruffe, sea lamprey and white perch. Two recent consecutive winters (2013–2014 and 2014–2015) brought unusually high ice coverage to the Great Lakes, and on March 6, 2014, overall ice coverage peaked at 92.5%, the second-highest in recorded history. The retreat left gravel, sand, clay and boulder deposits. The region surrounding the lake has proved to be rich in minerals, with copper, iron, silver, gold and nickel the most frequently mined. They used bows and arrows, paddled dugout canoes, fished, hunted, mined copper for tools and weapons, and established trading networks.

Duluth-Superior, at the western end of Lake Superior, is the most inland point on the St. Lawrence Seaway and the most inland port in the world. The Marquette Regional History Center Presents: Third Street: Day and Night, a Video History with Jim Koski. [23] The winter of 1986 set new high-water records through the winter and spring months (January to June), ranging from 1.33 feet (0.41 m) to 1.833 feet (0.559 m) above Chart Datum.

Only taconite and other low-grade ores are now mined and enriched on site. Raising Lake Superior's level by a single inch requires 551 billion gallons of water, but even that enormous sum is a mere drop in the Big Lake bucket. Many towns around the lake are current or former mining areas, or engaged in processing or shipping. Keep up with the magazine, news and happenings around the Big Lake. Maine, which isn't shown in the East Coast graphic, isn't a huge state, but it's definitely not tiny. Enjoy the Big Lake. This hard diabase protects the layers of sedimentary rock below, forming the flat-topped mesas in the Thunder Bay area. The lake was also called Lac Tracy (for Alexandre de Prouville de Tracy) by 17th century Jesuit missionaries. Trade remained in the hands of the British until 1817, when John Jacob Astor’s American Fur Company took over south of the Canadian border. [7], 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 American continent after Iliamna Lake in Alaska (942 feet [287 m] below sea level) and Great Slave Lake in the Northwest Territories of Canada at (1,503 feet [458 m] below sea level). more than 5 years ago. To reach its deepest point, you'd need to descend 1,276 feet – about the distance of a ride down from the top floor of Chicago's 108-story Willis Tower. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. The lake is fed by the waters of many short swift -flowing streams and drains through the St. Ma rys River into Lake Huron. Amazing, isn't it? Had a name change in 2009, though many people still know it by the Sears tower. It is shared by the Canadian province of Ontario to the north, the U.S. state of Minnesota to the west, and Wisconsin and the Upper Peninsula of Michigan to the south.
There is enough water in Lake Superior (3,000,000,000,000,000--or 3 quadrillion-- gallons) to flood all of North and South America to a depth of one foot. All boat traffic that leaves the lake for southern ports must pass through the Soo Locks at Sault Sainte Marie.

They are still much lower than levels considered dangerous to human health; but this steady, long-term rise is an unusual record of environmental nitrogen buildup. Lake Superior is 350 miles (563 km) long (east to west), and its greatest width is 160 miles (258 km) from north to south. It has a mean surface elevation of 600 feet (180 metres) above sea level and a maximum depth of 1,332 feet (406 metres).

By 1921, development in support of transportation and hydroelectric power resulted in gates, locks, power canals and other control structures completely spanning St. Marys rapids. In the 18th century, as the booming fur trade supplied Europe with beaver hats, the Hudson's Bay Company had a virtual monopoly in the region until 1783, when the rival North West Company was formed. With 78 crewmembers dead, their sinking marked the largest loss of life on Lake Superior to date. Extensive forests, which dominate the watershed, are held in federal, state, provincial, and private timberlands.

Overfishing has also been a factor in the decline of fish populations. At Thunder Bay, grain from the Canadian prairies is transferred from rail to ship. [13], The first French explorers approaching the great inland sea by way of the Ottawa River and Lake Huron in the 17th century referred to their discovery as le lac supérieur (the upper lake, i.e. The first people came to the Lake Superior region 10,000 years ago after the retreat of the glaciers in the last Ice Age. Lake Superior , the largest freshwater lake in the world, is the northernmost, westernmost, highest, and deepest of the five Great Lakes. Today, tourism is another significant industry: the sparsely populated Lake Superior country, with its rugged shorelines and wilderness, attracts vacationers and adventurers.
0 Comment. It has a maximum depth of 1,332 feet (406 meters).

Less winter ice cover allows more solar radiation to penetrate and warm the water. Corrections? The North West Company built forts on Lake Superior at Grand Portage, Fort William, Nipigon, the Pic River, the Michipicoten River, and Sault Ste. Lake Superior receives water from approximately 200 rivers, of which the largest are the Nipigon (from the north) and the St. Louis (from the west). Our editors will review what you’ve submitted and determine whether to revise the article. Lake Superior drains into Lake Huron via the St. Marys River. The principal islands in the lake are Isle Royale, a U.S. national park; the Apostle Islands, near the Wisconsin shore; Michipicoten, on the east side; and St. Ignace, near the mouth of the Nipigon River (Canada).

The lake’s average depth is 483 feet while its deepest point is 1,333 ft. Lake Superior holds 2,900 cubic miles of water which is enough to cover South and North America to a depth of 12 inches. Lake Superior is the largest of the Great Lakes with an area of 31,700 square miles which is about the size of Austria or South Carolina.

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