U.S. land managers have long known that they have a problem on their hands with overgrown forests and persistent drought.

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

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.

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

Gov. Katie Hobbs questioned the federal government's handling of the Dragon Bravo Fire, which destroyed numerous structures on the North Rim of the Grand Canyon, including the historic Grand Canyon Lodge.