Jamie Coffin recalls being one of several people flown out of the Grand Canyon because of a chlorine gas leak.

Researchers have found a link between two geological events in iconic locations of the U.S. Southwest that scientists previously didn't think had anything to do with each other.

Those players were expecting to be playing for a new coach this season after their head coach, Matt Werle, left the Lopes in February to pursue an opportunity at Kansas. They did not, however, expect that new coach would be Olmstead. The incoming players can take comfort in the relationship Olmstead has with their former coaches.

A new study suggests ancient wood floated into a cave far above the Colorado River when a meteorite-induced earthquake triggered a landslide, a dam, and an ancient lake.

A wildfire that destroyed a historic Grand Canyon lodge is continuing to spread out of control after it had been allowed to burn for days.

A new report has calculated that making national parks the responsibility of states would raise costs, cut revenue and reduce access for Arizonans.

The NWS warning was in effect for regions of the Grand Canyon below 4,000 feet elevation. Temperatures were forecast to potentially reach 110 degrees at Phantom Ranch and 102 at Havasupai Gardens.