Why is Lake Superior the healthiest?

Lake Superior's forested watershed and coastal wetlands help maintain water quality and a healthy aquatic ecosystem. Based on the assessments of the nine State of the Great Lakes indicators, the overall status of the Lake Superior basin ecosystem is Good and the trend is Unchanging.



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As for pollution, Lake Superior is the cleanest of the five Great Lakes. The lake's massive size helps dilute any pollutants that enter the water. Plus, it has fewer farms along its shores, reducing pollution. However, even though the lake is doing great, it could be doing better.

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The average underwater visibility of Lake Superior is 27 feet, making it easily the cleanest and clearest of the Great Lakes. Underwater visibility in places reaches 100 feet. Lake Superior has been described as the most oligotrophic lake 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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Yes, Lake Superior is safe for swimming. Lake Superior has the lowest drowning rate among all the Great Lakes.

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Known as one of the clearest lakes in the world, Rotomairewhenua in New Zealand is estimated to have a visibility of almost 80 meters. Blue Lake's water is so clean, its clarity is comparable to distilled water.

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Lake George, known as the “Queen of American Lakes,” is 32 miles long and widely considered one of the country's most beautiful and cleanest lakes. Each year, the deep blue waters of Lake George, located in the southern Adirondack State Park, attract over 50,000 summer tourists.

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Contaminant levels in fish due to Chemicals of Mutual Concern (CMCs) has become a growing concern amongst consumers within the Lakehead Watershed. Lake Superior fish are a still nutritious food source and may safely be consumed by following the Guide to Eating Ontario Fish.

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Several scientists told reporters that the world's largest freshwater lake is in generally good health but that pressures from humans -- development, pollution, rising temperatures and the movement of foreign species into the lake -- threaten the lake's cold, sensitive ecosystem.

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Lake Superior is known for its water clarity, but largely due to quagga mussels in Lakes Michigan and Huron, it's fallen to third place. Lake Superior is cold, deep and clear. But it's no longer the clearest of the Great Lakes.

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As the summer camping season peaks, the surface temperatures of Lake Superior gradually go from freezing, to tolerable, to relaxing. Our Daily Dips in August at Agawa Bay are by far the warmest and most comfortable since the surface water maxes out at about 20°C (68°F).

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Lake Erie is the shallowest, warmest, and most productive of the Great Lakes. Three distinct basins provide a variety of offshore habitats. The Detroit River, Maumee River, and smaller tributaries drain into the western basin, which averages 24 feet deep and contains extremely nutrient-rich water.

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Without a doubt, spring water is the winner. It is considered the best water to drink, providing vital nutrients as it moves through the body. This is, of course, spring water that is bottled at the source and proven to be actual living spring water.

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About a billion years ago, a fracture in the earth running from what is now Oklahoma to Lake Superior generated volcanic activity that almost split North America. Over a period of 20 million years, lava intermittently flowed from the fracture.

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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 Superior freezes at least in part every year and less frequently in its entirety. The last year that it froze completely was in February 1994. It almost froze completely in March 2003 and this photograph was taken by the GOES satellite on March 7, 2003.

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