Pistohiekka, Puumala


Pistohiekka is a delta formation that accumulated along a 150km long fragmented stretch of esker. The area emerged from underneath the continental ice sheet during the time when local ice lake stage in the Lietvesi area changed into the Yoldia Sea stage around 11,400 years ago. As the water levels fell, the Pistohiekka and Pistohiekankangas delta formation was washed away and levelled.

See also