To learn more about our glaciers, park scientists set up time lapse cameras that allow us to see how the ice changes and melts from day to day. The health of a glacier is a balance between how much winter snowpack accumulates and how much of that melts during the summer -- what's left can eventually become glacial ice. Watch how the winter snow cover disappears, exposing the darker glacial ice beneath. After our warm summer this year, very little snow was left by September. Learn more about glac

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