The main terminal moraine of the Pomeranian stage of the Weichselian, the ridge that runs from Eberswalde-Chorin through Feldberg, Mecklenburg Switzerland to the Kühlung ridge near Kühlungsborn, borders the lakeland to the north.
Vertigo pseudosubstriata was first identified as a Pleistocene fossil in the Weichselian loess of Dolní Věstonice (Moravia, Czech Republic).