News Release

Three Apparent Heat-Related Deaths on Trips in Inner Canyon of Grand Canyon National Park

The North Kaibab Trail in Grand Canyon National Park

NPS photo

News Release Date: June 19, 2026

Contact: Grand Canyon Office of Communications, [phone]

Grand Canyon, Ariz. – Grand Canyon National Park rangers and emergency personnel responded to two separate heat-related incidents on June 12 and June 16, resulting in three deaths. In both cases, the deceased hikers were hiking trails in the Inner Canyon, where temperatures can exceed 109 F in the shade during midday hours.

On June 12, a 72-year-old male succumbed to symptoms of heat-related illness along the South Kaibab Trail; on June 16, a 67-yr old male and a 68-yr old female also appear to have succumbed to symptoms of heat-related illness on the North Kaibab Trail, although the investigation is still ongoing. Despite rapid response and aerial support, all three individuals were found deceased when responders arrived. All individuals were transported to the Coconino County Medical Examiner office. We have no additional information at this time.

Hiking in Grand Canyon can be a challenge for anyone, especially during the heat of summer. The recent increase in heat-related incidents comes as summer temperatures in the Inner Canyon have reached dangerous levels, creating conditions that can quickly overwhelm hikers during the hottest parts of the day. Due to current conditions, the NPS is encouraging visitors to stay off Inner Canyon trails from 10 a.m. to 4 p.m. For more information on visiting Grand Canyon during summer, visit the park website.