The Grand Canyon's three Inner Corridor trails had to be shut after workers discovered dangerous chlorine gas at the Roaring ...

Bright Angel, South Kaibab and North Kaibab trails were all closed. The gas leak was at Roaring Springs, which is the water ...

Water from Roaring Springs is treated with chlorine to disinfect and to control microbes within it, officials noted.

Some trails in Grand Canyon National Park are closed because of a chlorine gas leak, according to a post on the park's ...

A chlorine gas leak at the Grand Canyon forced the closure of several inner corridor trails until further notice, park ...

A chlorine gas leak at the Grand Canyon forced the closure of several inner corridor trails until further notice, park officials announced Wednesday evening.

The National Park Service said on Wednesday evening that inner canyon corridor trails at the Grand Canyon were closed due to ...

GRAND CANYON VILLAGE, Ariz. — All inner canyon trails at the Grand Canyon are closed because of a chlorine gas leak at Roaring Springs, the national park said on Wednesday evening. The chlorine ...

GRAND CANYON VILLAGE, Ariz. — All inner canyon trails at the Grand Canyon reopened after a chlorine gas leak at Roaring Springs, the national park said on Thursday afternoon. The chlorine gas ...

GRAND CANYON NATIONAL PARK, AZ (AZFamily) — People can once again enjoy a hike at Arizona’s world-famous natural wonder. The National Park Service said on Wednesday evening that inner canyon ...