On the western coast of Newfoundland, within Gros Morne National Park, lies Western Brook Pond. This lake was originally a fjord, carved from the surrounding plateaus by glaciers. With the retreat of the glaciers, the fjord was eventually cut off from the sea by the rebounding land, its salt water replaced over millennia by fresh water. The very deep waters of the lake are extremely low in nutrients, meaning they are highly pure and clear, and contain virtually no algae.
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