A wildfire burning in Grand Canyon National Park triggered a chlorine gas leak Friday afternoon after flames reached a water ...

A Grand Canyon water treatment facility located at the North Rim caught fire on Saturday, causing chlorine gas to be released ...

Authorities maintained the evacuation zones for the White Sage Fire north of the Grand Canyon as the fire grew expectantly.

A massive wildfire near Arizona 's Grand Canyon National Park erupted overnight, growing more than 20 times in the past 24 ...

Hurricane Valley firefighters have been deployed to the White Sage Fire, which is exhibiting “extreme fire behavior” as it ...

Most of Minnesota and parts of Montana, North Dakota and Wisconsin were ranked “unhealthy” for air quality on a U.S. Environmental Protection Agency map.

Parts of Grand Canyon National Park, a popular natural wonder in the western United States, remained closed due to two ...

The White Sage Fire has burned 19,153 acres, and the nearby Dragon Bravo Fire has burned 1,500 acres. Neither of the fires has any contamination.

The White Sage and Dragon Bravo fires have burned a combined 24,000 acres, only miles apart from one another near the Grand ...

Wildfire smoke from Canada has made for bad air quality over parts of the Upper Midwest. Most of Minnesota had “unhealthy” ...

The wildfire closed the North Rim's visitor center and forced the evacuations of anyone living nearby, as firefighters ...

Fast-spreading wildfires have forced the evacuation of part of the Grand Canyon, with the US National Park Service ordering ...