Grand Canyon National Park turns 100: How a place once called 'valueless' became grand
- Written by Stephen Pyne, Regents Professor in the School of Life Sciences, Arizona State University

Few sights are as instantly recognizable, and few sites speak more fully to American nationalism. Standing on the South Rim in 1903, President Teddy Roosevelt proclaimed it “one of the great sights every American should see.”
It’s true. Every visitor...
Read more: Grand Canyon National Park turns 100: How a place once called 'valueless' became grand