(By volume, it's the third largest, behind Lake Baikal in Siberia and Lake Tanganyika in eastern Africa.) Edmund Fitzgerald was battered so intensely by Lake Superior that the 729-foot (222 m) ship split in half; her two pieces are approximately 170 feet (52 m) apart in a depth of 91 fathoms 4 feet (550 ft or 170 m). The lake's average surface elevation is 600 feet (183 m) above sea level.  Warmer temperatures could lead to more snow in the lake effect snow belts along the shores of the lake, especially in the Upper Peninsula of Michigan. In the most recent geological history, during the Wisconsin glaciation 10,000 years ago, ice covered the region at a thickness of 1.25 miles (2 km). Here's another (preposterous) way to think about it: Downing half a gallon of water daily, it would take you 16.4 trillion years to drink Lake Superior. Noaa nautical chart 14961 lake superior great lakes bathymetry and sline bwca bw lake depth maps boundary waters chequamegon bay superior fishing map.  The water surface's slow reaction to temperature changes, seasonally ranging between 32 and 55 °F (0–13 °C) around 1970, helps to moderate surrounding air temperatures in the summer (cooler with frequent sea breeze formations) and winter, and creates lake effect snow in colder months. more than 1 year ago.
The lake’s drainage basin is 49,300 square miles (127,700 square km), exclusive of its surface area of 31,700 square miles (82,100 square km). 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). Seasonal hunting, sportfishing, and tourism form the basis for an important regional recreation industry. Steve Colman, now retired from the University of Minnesota Duluth's Large Lakes Observatory, uses this comparison with the U.S. East Coast to explain the size of the Big Lake.
Lake Superior empties into Lake Huron via the St. Marys River and the Soo Locks. The Laurel people (c. 500 BC to AD 500) developed seine net fishing, evidence being found at rivers around Superior such as the Pic and Michipicoten. The Caspian Sea, while larger than Lake Superior in both surface area and volume, is brackish; though presently isolated, prehistorically the Caspian has been repeatedly connected to and then isolated from the Mediterranean via the Black Sea. [a] The shoreline of the lake stretches 2,726 miles (4,387 km) (including islands). Lake Superior has as much water as the rest of the Great Lakes combined – plus three more Lake Eries. Fishing spots and depth contours layers are available in most Lake maps. 6. Notable production includes gold from the Hemlo mine near Marathon, copper from the Keweenaw Peninsula and the Mamainse Point Formation, iron from the Gogebic Range, silver at Silver Islet, and uranium at Theano Point. The lake is so massive and its volume so large that, were it to be emptied at its current rate (with no compensating additions of water), it would take 191 years. Many towns around the lake are current or former mining areas, or engaged in processing or shipping. Twice per year, however, the water column reaches a uniform temperature of 39 °F (4 °C) from top to bottom, and the lake waters thoroughly mix. Shipping was slow to arrive at Lake Superior in the 19th century. We use their number: 1,276 feet. The lake's lowest levels occur in March and April. Ice closes the Lake shipping from mid-January to late March. Because of its large size (relative to watershed area) and the porous "dam" at its outlet, long-term lake-level fluctuations are much lower than in any of the other Great Lakes—generally less than 1 yard (1 metre). Enter your email address and select which Free Newsletters you'd like to receive. That is why the depression was made and filled with water. Amazing, isn't it? , 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. 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. In the winter of 1926 Lake Superior reached its lowest recorded level at 1.58 feet (0.48 m) below datum.  This would be a significant departure from historical records as, according to Hubert Lamb, Samuel Champlain reported ice along the shores of Lake Superior in June 1608.
Lake Superior Magazine Explore the Depths of Lake Superior. Lake Superior's 3 quadrillion gallons are enough to cover both North and South America under a foot of water. No wonder ours is called Superior. , 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).
Lake Superior is the largest freshwater lake in the world in area and the third largest in volume, behind Lake Baikal in Siberia and Lake Tanganyika in East Africa.
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