Old passage of the Imatrankoski rapids and Kruununpuisto park potholes
When Vuoksi broke through 5,700 years ago, the flowing water eroded a…
When Vuoksi broke through 5,700 years ago, the flowing water eroded a…
Lammassaari is a delta belonging to the First Salpausselkä’s ice-marginal formation and…
Vuoksenniska is part of the First Salpausselkä, where the Vuoksi outlet channel…