How long does it take water from Lake Superior to reach the ocean?
Great Lakes Volume and Transit FactsThe average drop of water takes 173 years to pass through Lake Superior. The average drop of water takes 204 years to pass from Lake Superior to the ocean.
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Lawrence Seaway (the Highway H2O): Opened to deep draft navigation in 1959. Distance from the Atlantic Ocean to Duluth, Minnesota via Lake Superior is 2,038 nautical miles and takes 8.5 sailing days.
Lake Superior is the largest freshwater lake in the world by surface area and the third-largest by volume, holding 10% of the world's surface fresh water.
Because of this narrow width most ocean-going ships can't make it through. However, our lakers can make it to the atlantic, but usually don't venture too far as their narrow beam and the larger waves of the ocean make it perilous.
Geology of Lake InferiorLake 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.
The Ojibwe name for the lake is gichi-gami (in syllabics: ????, pronounced gitchi-gami or kitchi-gami in different dialects), meaning great sea. Henry Wadsworth Longfellow wrote this name as Gitche Gumee in the poem The Song of Hiawatha, as did Gordon Lightfoot in his song The Wreck of the Edmund Fitzgerald.
The primary reason for shipwrecks on the Great Lakes is stormy weather, specifically in the upper portions of Lake Michigan, Lake Huron and Lake Superior. In the late fall and early winter, weather can be particularly treacherous. Most Great Lakes shipwrecks occurred in the late fall.
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.
Of all of the Great Lakes, Lake Erie had become predominantly polluted by the 1960s, largely due to the heavy industrial presence along its shores. With 11.6 million people living in its basin, and with big cities and sprawling farmland dominating its watershed, Lake Erie is severely impacted by human activities.
Lake Superior is the largest freshwater lake in the world by surface area and the third-largest by volume, holding 10% of the world's surface fresh water.
Lake Superior is barely developed, compared to the other Great Lakes. This has allowed it to remain relatively undisturbed and free from much of the pollution and habitat destruction that the other lakes have suffered.