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.

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

An emergency situation at the Grand Canyon forced the closure of inner corridor trails, including the Bright Angel Trail, ...

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

At this time, it isn't clear what caused the gas leak, but the trails have been reopened to the public and deemed safe for ...