The #NorthSlope of #Alaska is home to thousands of #Thermokarst lakes, such as #TeshekpukLake. Thawing #Permafrost creates depressions that fill with meltwater. This unique landscape is often likened to #SwissCheese. #NationalCheeseDay https://t.co/o2hSVmaR3l

USGS Landsat

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