The Grand Canyon Lodge on the North Rim was destroyed by the Dragon Bravo wildfire, which began with a lightning strike on July 4 and spread rapidly due to high winds. Arizona officials, including Democratic Sens.

A wildfire burning in Grand Canyon National Park triggered a chlorine gas leak Friday afternoon after flames reached a water treatment facility.

Visitors and staff at two national parks in the U.S. West have been evacuted because of wildfires. Officials at Black Canyon of the Gunnison National Park in Colorado say the park closed Thursday morning after lightning sparked blazes on both rims.

Authorities increased the size of the evacuation zone for the White Sage Fire north of the Grand Canyon on Friday morning.