Corries form in hollows where snow can accumulate.
Formation de glacier. La glace glaciaire est composée de cristaux de glace, de neige, d'air, d'eau et de sédiments Photo Stock - Alamy
Glaciers | National Snow and Ice Data Center
Maine Geological Survey: Surficial Geology of Maine
Glacier — Wikipédia
Glacier Formation | Canadian Cryospheric Information Network
How glaciers are formed explained | Britannica
Glacier Formation - Glaciation
Glacier Formation Glaciers are formed from layer after layer of compacted snow. As the snow compacts, it loses trapped air, becoming harder and more dense. - ppt download