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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
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.