Glen Canyon Dam has impounded the Colorado River near the Arizona-Utah line since 1963, and with it the annual load of sand that natural snowmelt floods previously churned up onto beaches and sandbars ...

Grand Canyon National Park — A solo backpacker has been found dead near a rugged and remote trail along the Colorado River in Grand Canyon National Park, authorities in Arizona said Thursday.

By Claire Moses An 80-year-old man whose boat flipped on the Colorado River over the weekend has become the latest fatality at Grand Canyon National ... Rapid in Northern Arizona, according ...

From Horseshoe Bend to Grand Canyon's Mather Point to the Chiricahua Mountains, these are the Most Treasured Views in AZ.

Carletta Tilousi, a member of the Havasupai Indian Tribe, was born and grew up at the bottom of the Grand Canyon in Supai ...

A crucial trail closure caused by construction is creating headaches for rescue officials at the Arizona national park ...

The Cambrian-age Tonto Group is a set of rocks famous for holding clues to the burst of new life that reshaped Earth 500 ...

Thirty federally recognized tribes lay claim to a fourth of the Colorado River, a vital water source for 40 million people ...

In this month’s Canyon Commentary, author Scott Thybony ponders the ancient story of a Hopi boy who embarks on an epic ...

River rafting enthusiasts will find thrills and spectacular views of awe-inducing cliffs while navigating the river that cuts ...

Federal agencies have finished digging out a side channel below Glen Canyon Dam that's been a breeding ground for nonnative ...