An alternative spelling of esker; a long, winding ridge of gravel and sand deposited by glacial meltwater streams.
From Irish esker, from Old Irish eiscir. This geological formation got its scientific name from Irish geography, where such ridges are particularly prominent in the landscape.
Eskars are like the fossilized rivers of ancient glaciers—when ice ages ended, torrents of meltwater carved tunnels under glaciers and dropped their sediment in snake-like ridges that you can still see and hike on today, thousands of years later.
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