The Mackenzie Delta region of the Northwest Territories in Canada is home to the world’s greatest concentration of pingos. What is a pingo?

As described on Wikipedia: "Pingos are intrapermafrost ice-cored hills, ranging in height from 3 to 70 meters and 30 to 1,000 meters in diameter. They are typically conical in shape and grow and persist only in permafrost environments, such as the Arctic and subarctic."

Asked by Tom Cohen · Last updated 5 years ago · 1K views