New research suggests that the Grand Canyon was mostly formed only 5 or 6 million years ago, much more recently than previously suspected. A new study published in Nature Geoscience concludes that ...

Long ago, the Grand Canyon wasn’t a land of plunging ravines and gaping gullies, but the site of towering mountains, not dissimilar to South America’s Andes of today. They are known as the Vishnu ...

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 ...

Visitors to the Grand Canyon always want to know: How old is it? Park rangers are instructed to tell them the canyon has been carved by the Colorado River for the past 5 million or 6 million years.

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 ...

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 ...