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 ...

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

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

A chlorine gas leak in the North Rim forced Grand Canyon National Park officials to close three trail heads until further ...

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

Three trails at the Grand Canyon are closed until further notice after a chlorine gas leak at Roaring Springs.

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 ...