Why is Flathead Lake so clear?

The clarity of Flathead Lake's waters is renowned. In the summer it is often easy to see through twenty feet of the water column. The lake is so clear because it is relatively low in nutrients (phosphorus and nitrogen) which promote the growth of algae.



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1. Blue Lake, New Zealand. The Blue Lake is the clearest lake in the world. New Zealand is well-known for its natural beauty, with mountainous terrains surrounding crystal clear lakes whenever you hop out of the city.

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Lake Tahoe Known for its phenomenal clarity, this ancient lake has the purest waters in North America, making this The Clearest Lake in the United States.

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Annecy. Regarded as the clearest lake in Europe, Annecy is home to a picturesque town of the same name – sometimes also known as Venice of the Alps due to its numerous water canals.

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The Blue Lake, New Zealand Scientists in 2011 found out that this is the clearest lake in the world. The waterbody is fed by another glacial lake, which is free of debris.

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The lakes in the mountains that have vivid blue and green colours are glacier fed. As the melt water from a glacier starts to flow in the spring time it carries with it glacier silt or rock flour. The silt is created when rocks underneath the surface of the ice are grinding from the movement of the glacier.

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