A USA TODAY analysis found more than 600 fires that burned at least partly inside national parks in the past four decades.

A group of adults with disabilities recently completed an extraordinary challenge, rafting 220 miles down the Colorado River through the Grand Canyon over ten days.

A national park in southwest Colorado partially reopened Wednesday for the first time since a fire broke out earlier this ...

Wildfires across the U.S. have burned thousands of acres this year, including significant areas within national parks and forests.

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

Rocks gathered along the Colorado River contained evidence of a bustling community of animals in an ancient sea.

The U.S. Bureau of Reclamation should start planning to modify the Glen Canyon Dam, which plugs the Colorado to form Lake ...

If you are into off-the-grid, rugged terrain, Grand Canyon-Parashant National Monument may be one of the "last truly wild" ...

A wildfire was reported about 8 miles west of Pleasant View on the northwest corner of Montezuma County Friday at 1 p.m., ...

Research Grand Canyon landslide-dam and paleolake triggered by the Meteor Crater impact at 56 ka by a team from the ...

A massive landslide would have dammed the Colorado River, forming a deep lake that has since dried up. A meteorite impact ...

Researchers led by a team at the University of New Mexico suggest that a large meteor triggered a massive landslide in the nearby Grand Canyon, blocking the Colorado River and forming a 50-mile-long ...