Stratum
Strata & Time · 00:07 · 2026

The retreating Alsek Glacier

Alsek Lake fills the space the glacier leaves behind in southeast Alaska. A Landsat sequence spanning forty years.

What to look for

Watch the lake take the place of the ice. Every patch of open water at the end of the film was under the glacier at the start.

Part of
Collection
Strata & Time
Series
Forty years in four seconds
Running time
00:07
Year
2026
Source
NASA SVS / Landsat, SVS 15054
Licence
Public domain (United States government work)

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