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Defiance At Rocky Mountain National Park

Glacial erratic along the trail to Black Lake in Rocky Mountain National Park/Kurt Repanshek
Kurt Repanshek
Monday, October 23, 2017

This glacial erratic rests in aptly named Glacier Gorge in Rocky Mountain National Park. How long has it been there? How long might it be before it's gone? The most recent glaciation across North America was the Wisconsin (also known as the Pinedale glaciation in the Rockies), which lasted from 70,000 to 10,000 years ago.

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