Mogilnoe, Natural monument lake in Kildin Island, Russia.
Lake Mogilnoe is a freshwater lake located on Kildin Island and designated as a protected natural monument. The water body features distinct stratification where layers of different origin remain separated from one another.
The lake has been studied by researchers since the late 1800s, who documented its unusual water stratification pattern. This scientific work eventually led to its designation as a protected natural monument.
The lake holds special status as a protected natural monument in Russia, representing the environmental preservation efforts of the Murmansk Oblast region.
The lake sits on a remote island and remains difficult to access, making it mainly suited for hikers and nature enthusiasts. Visitors interested in seeing the site firsthand should expect changeable weather conditions and bring appropriate gear.
What makes this lake unusual is its connection to the ocean through underground channels, allowing saltwater to penetrate deeper layers. This rare property enables both marine and freshwater organisms to exist at different levels without mixing.
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