Native American tribes in Arizona and the state attorney general are questioning the safety of a mine near the Grand Canyon. Ryan Heinsius with member station KNAU in Flagstaff reports.

In the afternoon, while his crew set up camp for the night, Powell would often climb into the canyon to investigate. Much has been learned about the geology of the Grand Canyon and about the ...

The public lands surrounding Grand Canyon National Park contain high concentrations of uranium ore. Mining bores deep into vertical rock formations called “breccia pipes,” making uranium soluble to ...

On a scorching day in June 2013, the Grand Canyon discouraged hikers from making a long trek to the bottom because there would be no potable water. A set of historic cabins and bunks also would be ...

The Navajo Loop Trail is one of the ... limitations before heading out for a hike in Bryce Canyon National Park. A hike here, ...

Grand Canyon University is one of more than 800 institutions with graduate schools surveyed by U.S. News on an annual basis. Grand Canyon University confers degrees through various schools ...

The majority of the canyon's services and facilities – campgrounds, lodges, guided tours, etc. – are located on the popular South Rim. Because the Grand ... by local Native American tribes.

A variety of companies offer helicopter tours of the Grand Canyon, with many options departing from Grand Canyon National Park Airport (located in Tusayan) and most Las Vegas hotels. Read on to ...