Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma, are remnants of vast ...
At the National Historic Landmark of Obsidian Cliff, the molten lava that ... United States to sign a new law making ...
Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park ... in Yellowstone. In samples gathered at Obsidian ...
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Paige Minds The Gap on MSN8 Best Yellowstone Restaurants: Where to Eat in the ParkFrom bison burgers to huckleberry margaritas, get ready to discover the must-try dishes and best places to eat in Yellowstone ...
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