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Geography

How Periglacial Patterned Ground Forms in High Latitudes

Quick fact

Patterned ground can also form on Mars, where periglacial processes have created polygonal ground in the absence of liquid water.

Why this is interesting

Have you ever seen the ground look like a giant honeycomb or a mosaic of stone circles? In the high Arctic, the barren soil is mysteriously arranged into perfect patterns—who built them?