Image A helicopter flying above the Grand Canyon as the authorities worked to recover the body of a 20-year-old woman last week.Credit...National Park Service, via Associated Press The Grand ...

Stock image of a smallmouth bass. These invasive fish have been stopped from breeding in the Grand Canyon thanks to releases of cooler water from Lake Powell. Stock image of a smallmouth bass.

“Leave it as it is,” declared U.S. President Teddy Roosevelt after a 1903 sojourn at the Grand Canyon. “You cannot improve on it. The ages have been at work on it, and man can only mar it.” ...

Image The floor of the Grand Canyon near Havasu Falls in the Havasupai tribal lands.Credit...John Burcham for The New York Times There is a high risk of flash floods there during the monsoon ...