Geography
Why Periglacial Landscapes Form Patterned Ground and Ice Wedges
Quick fact
In some periglacial regions, ice wedges can grow for centuries, eventually forming ice masses up to 10 meters deep and several meters wide at the surface—like giant underground ice walls.
Why this is interesting
Have you ever seen a field of perfectly arranged stone circles or a honeycomb pattern carved into the frozen ground? These astonishing patterns aren't human-made—they're the natural signature of a landscape shaped by ice.