The NWS warning was in effect for regions of the Grand Canyon below 4,000 feet elevation. Temperatures were forecast to potentially reach 110 degrees at Phantom Ranch and 102 at Havasupai Gardens.

The Dragon Bravo Fire was 0% contained on Friday evening, sparking the evacuation of visitors and residents from the national park's northern rim. The White Sage Fire, an even larger blaze, has scorched roughly 10,

The mules are a part of a century-old Grand Canyon experience in which visitors ride into the canyon while admiring its vistas from the saddle. The park service keeps mules for transporting supplies into the canyon, but it's up to the concessionaires to run the daily rides and maintain the mules that carry visitors.

The Grand Canyon’s North Rim in Arizona also closed Thursday because of a wildfire on adjacent Bureau of Land Management land near Jacob Lake. The Coconino County Sheriff’s Office said it helped evacuate people from an area north of Jacob Lake and campers in the Kaibab National Forest nearby.

President Donald Trump, in a July 3 executive order, signaled higher fees for foreign tourists visiting the Grand Canyon and other national parks.

A fire near the Grand Canyon National Park in Arizona has grown more than 20 times in size in 24 hours as an intensifying wildfire season sees the return of Canadian wildfire smoke into the U.S.

Grand Canyon National Park reports a 67-year-old man's death on South Kaibab Trail amid sweltering temperatures, despite CPR attempts by passersby and park medical personnel.