Shallow (and partially frozen) Unnamed Crater in Vastitas Borealis (Saturated Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)

Caption NASA:"Located at high Northern Latitude, the floor of this Unnamed Crater shows a typical surface texture - polygonal ground.
On Earth, this surface texture is found above permafrost and is believed to be caused by freeze/thaw cycle of water moving larger material upward".

Coord.: 66,4° North Lat. and 99,7° East Long.