Natural Features & Ecosystems

Aerial view of the Yukon River

NPS/Josh Spice

 
Calico Bluff
Geologic Formations
600 million years of geologic history. Dig in.
 
Permafrost exposed in a cutbank on the Yukon River
Permafrost

Permanently frozen ground that shapes the environment.
 

Related Yukon-Charley Rivers Content

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    Tags: central alaska network lakes climate change vegetation monitoring permafrost climate change impacts permafrost thaw aquatic invasive species aquatic insects aquatic invertebrates invasive plant species streams

    Last updated: November 18, 2022

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