Baltic Ice Lake

Baltic Ice Lake
Late Baltic Ice Lake around 11,620 cal. years BP,[1] with a channel near Mount Billingen through the Central Swedish lowland. (current coastline and political boundaries under historic ice sheet added)
Location	Europe
Coordinates	58°N 20°E / 58°N 20°E / 58; 20
Type	former lake,subglacial lake

The Baltic Ice Lake is a name given by geologists to a freshwater lake that evolved in the Baltic Sea basin as glaciers retreated from that region at the end of the last ice age. The lake's existence was first understood in 1894. The lake existed between about 16,000 and 11,700 years ago with well defined evidence from the warming of the Bølling–Allerød Interstadial to the period of cooling called the Younger Dryas before the Holocene, the onset of which is close in time to the end of the ice lake. The lake drained into the raising world ocean on two occassions and when water levels became the same on the second, with a sea level passage in the Billingen region of southern Sweden, it became the Yoldia Sea.