After the Dragon Bravo fire destroyed the historic lodge and other buildings on the night of the eleventh, Horning noticed on his phone app that two helicopters began water drops on the morning of the twelfth and slurry drops began on the thirteenth.

The visitor center and a wastewater treatment plant were among the 50 to 80 structures lost, the park superintendent said. The area was evacuated Thursday.

Dozens of buildings inside the North Rim of the Grand Canyon have been destroyed, including a historic lodge, as a chlorine gas leak has forced firefighter evacuations from the Dragon Bravo Fire.

Grand Canyon National Park evacuated Phantom Ranch and areas of the inner canyon after the rapidly growing Dragon Bravo Fire led to the leak of poisonous gas.

About 10 people die at the Grand Canyon every year, CBS affiliate KPHO reported. This is the second death at the park that the park service has reported this year. In May, a 74-year-old man died while attempting to hike from the canyon's South Rim to the North Rim, an approximately 24-mile distance.