Lake Komi was a prehistoric periglacial lake formed in the region of the present-day Russian Komi Republic when the Barents Sea outlet of the Pechora River was blocked by ice during, at least, Major glacial 4 of 4, of the Pleistocene.
The formation of Lake Komi is linked to a significant glacial event during the Pleistocene era, specifically Major Glacial Period 4, where the Barents Sea outlet of the Pechora River was frozen over.