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

Three trails in Grand Canyon National Park are closed because of a chlorine ... The Bright Angel Trail, South Kaibab Trail and North Kaibab Trail were all closed down until further notice.

GRAND CANYON ... water source for all canyon facilities. All inner canyon corridor trails temporarily closed, including: Bright Angel South Kaibab North Kaibab The park announced that the gas ...