A research team outlines how it identified and bestowed a moniker upon a previously unexplored 500 million-year-old Grand Canyon formation: The Frenchman Mountain Dolostone. Can you believe that in ...
WASHINGTON — Gazing into the majestic Grand Canyon, awe-struck visitors inevitably ask: ‘‘How old is it?’’ Far older than generally thought, says new evidence that scientists culled from caves lining ...
View from the Grand Canyon's South Rim onto Nankoweap Delta. Remnants of a past natural dam created by a landslide are visible on the far side of the Colorado River, just to the left of the dry bed of ...
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