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 notice.

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

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 gas leak was reported at Roaring ...

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

Chlorine gas created by the accidental mixing of chemicals at the Bessborough Hotel at Spadina Crescent and 21st Street in ...

The National Park Service said on Wednesday evening that some of the Grand Canyon’s trails are closed due to a cholrine gas ...

Trails in Grand Canyon National Park were closed due to a chlorine gas leak. Chlorine is used as a disinfectant in the Roaring Springs area of the park. The trails have since reopened NORTH RIM ...