The National Park Service is defending its handling of a lightning-sparked wildfire that destroyed the nearly century-old Grand Canyon Lodge and dozens of historic cabins, saying containment lines had been built around the blaze and crews were prepared to conduct defensive firing operations.

A wildfire that tore through a historic Grand Canyon Lodge​ had been allowed to burn for days before erupting over the weekend, raising questions about federal officials' decision not to aggressively attack it right away.

The fire on the North Rim of the Grand Canyon started from a lightning strike but was managed as a controlled burn until it spread.

There’s a new milky blue pool in Yellowstone National Park.

Yellowstone National Park closed the Madison River, the Firehole River and the Gibbon River downstream of Norris Campground, as well as those rivers' tributaries, on July 12. Fishing draws about 50,000 visitors to Yellowstone each year,

Beneath Yellowstone National Park lies a complex and extensive volcanic system. Trump administration pulls $4B in federal funding for California's bullet train project What happened when the Trinity test bomb detonated,

One person is dead and two others are injured after a small plane crashed in Olympic National Park Tuesday, according to the National Park Service.

Federal investigators are on the scene of a small plane crash in the Pacific Northwest that killed one person and left two others injured in a remote part of Olympic National Park in Washington.

A small plane crash in Olympic National Park left one dead and two injured, according to the National Park Service.