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Gates of the Arctic National Park and PreserveRanger view a valley with the Arregetch Peaks behind.
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Gates of the Arctic National Park and Preserve
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Chert projectile point  

Did You Know?
Chert is a fine-grained rock used by the prehistoric inhabitants of the Brooks Range to create tools like scrapers, knives and spear points. The Brooks Range contains one of the richest deposits of "tool quality" chert in the world.

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Last Updated: February 10, 2009 at 17:51 EST