 Most lakes in northern Europe and North America have been either influenced or created by the latest, but not last, glaciation, to have covered the region.Glacial lakes include proglacial lakes, subglacial lakes, finger lakes, and epishelf lakes.Epishelf lakes are highly stratified lakes in which a layer of freshwater, derived from ice and snow melt, is dammed behind an ice shelf that is attached to the coastline.