Grand Canyon: New Dating Reveals an Older Age

View, looking down, “Grand Canyon National Park,” Arizona (National Parks and Monuments series, taken 1933-1942)
Photographed by Ansel Adams. The National Archives.


A study published in the journal Science suggests the Grand Canyon may be even older than scientists previously thought. New data moves back its formation from an estimated 5 to 6 million years ago to about 70 million years ago (before dinosaurs’ extinction).

Read more details in this report on SciTech Daily.