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erratics photo pair
Photo Credits: Fred Dean (1976), Carl Roland (2005)
Ecoregion: Alaska Range Mountains
Change Type: Increasing vegetation on river bars
Increasing vegetation on river barsAnimation is available
Description:
Peering beyond the large boulder left behind by the retreating Muldrow glacier thousands of years ago, you can witness the growth of vegetation on the McKinley River Bar during a span of 29 years.