Geologic Activity

Tatonduk Geothermal Event 3 688x

NPS Photo by Ed Christensen


With millions of layers of geology exposed above the surface and two fault lines intersecting in the preserve, Yukon-Charley Rivers is rich with geologic activity. Learn more through the links below.


Windfall Mountain Fire

A puzzling geologic event that began as an explosion in the fall of 2012.

600 million years of geologic history. Dig in.

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