The Grand Canyon National Park Service said that at about 11:50 a.m. on Tuesday, July 8, the Grand Canyon Regional Communications Center received a report of an unresponsive hiker.

The Grand Canyon Regional Communications Center received a report of an unresponsive hiker on the trail, below Cedar Ridge, on July 8, just before noon, according to NPS.

July 10 (UPI) -- A 67-year-old man from Texas has died while hiking the Grand Canyon, according to park rangers who are warning of extreme heat. The hiker from Alvarado, Texas, was found ...

The NPS recommends avoiding hiking the Grand Canyon's inner trails between 10 a.m. and 4 p.m., when temperatures are at their peak.