A 67-year-old Texas man died while hiking at the Grand Canyon National Park amid extreme summer temperatures, according to a news release from the National Park Service (NPS) on Wednesday, July 9.

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. Temperatures in the inner canyon can reach over 120 degrees Fahrenheit in the shade, creating "extremely hazardous conditions for hikers," the NPS said.

A hiker has died on the South Kaibab Trail in the Grand Canyon National Park while attempting to reach the Colorado River.

A 67-year-old man from Texas died in the Grand Canyon during an extreme heat warning, rangers said. The man was found at about 11:50 a.m. July 8 on the South Kaibab Trail, below Cedar Ridge, the National Park Service said in a news release.

An investigation is underway following the death of a hiker in Grand Canyon National Park.

A 63-year-old woman was found a quarter mile away from her vehicle. The investigation indicated she was returning to the trailhead when she collapsed.

A 67-year-old Texas man died Tuesday after he was found unresponsive on a Grand Canyon National Park trail, officials said.

GRAND CANYON, AZ — A hiker has died at the Grand Canyon while on the South Kaibab Trail, below Cedar Ridge. Just before noon on July 8, officials received a report of a man who was unresponsive on the trail.

A 67-year-old Texas man has died, according to National Park Service officials, while he was trying to hike to the Phantom Ranch at the Grand Canyon.

The National Parks Service warns daytime temperatures at the Grand Canyon can top 120°F, ‘significantly increasing the risk of heat-related illness’