Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

Ryan Crow of the U.S. Geological Survey (USGS) gave a talk to a packed crowd at the Museum of Northern Arizona Jan. 12 ...

The majority of the canyon's services and facilities – campgrounds, lodges, guided tours, etc. – are located on the popular South Rim. Because the Grand Canyon is a national park, be aware ...

A small portion of identified uranium resources in the United States are found in the Grand Canyon mineral withdrawal area.

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 ...

One of the more controversial additions to the Grand Canyon's surroundings, the Grand Canyon Skywalk is a large, semicircular bridge with a transparent glass floor, allowing tourists to walk out ...

GRAND CANYON VILLAGE, Ariz. — All inner canyon trails at the Grand Canyon reopened after a chlorine gas leak at Roaring Springs, the national park said on Thursday afternoon. The chlorine gas ...