A gig as a shuttle driver for Grand Canyon river rafters led Kelly Burke to a life of science and conservation.
Both fires burning north of the Grand Canyon were ignited by lightning, but the landscapes are different.
A melting glacier formed spectacular natural wonders thousands of years ago—a display of nature's powerful and majestic ...
One hundred years after John Wesley Powell’s historic trek down the Grand Canyon, National Geographic went on a commemorative expedition to see the wonders the geologist wrote about and the risks he ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results