Photoglossary

Moulin

(from the French) A water-worn pothole formed where a surface meltstream exploits a weakness in the ice. Many moulins are cylindrical, several metres across, and extend down to the glacier bed, often in a series of steps.

Moulin, about 10 metres wide, on Unteraargletscher, Bernese Alps, Switzerland. Photo J. Alean.

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