An experienced hiker attempting to complete the Rim-to-Rim hike in Grand Canyon National Park was pronounced dead on the trail on May 15 by emergency personnel, according to a park release.
The hiker became unresponsive approximately half a mile below the North Kaibab Trailhead. Bystanders and National Park Service (NPS) personnel attempted to resuscitate the hiker, identified as Dennis Smith, 74, of Olympia, Washington, but they were unsuccessful.
Smith was attempting a over 20-mile hike from the South Rim to the North Rim. Known as an avid and experienced hiker, Smith’s cause of death is under investigation by the Coconino County Medical Examiner’s Office.
Following the news of his death, the NPS urged all visitors to Grand Canyon National Park, particularly those planning to hike or backpack in the inner canyon, to prepare for extreme heat in the spring and summer months. Temperatures in the inner canyon are expected to reach 100°F (38°C) in mid May, making it critical for hikers to take proper precautions.
In light of the forecasted heat, park rangers strongly advised against hiking in the inner canyon during the hottest part of the day, between 10 a.m. and 4 p.m.
Hikers and backpackers attempting rigorous distances through the inner canyon are encouraged to be self-reliant to prevent emergency situations for themselves and responders. Be aware that efforts to assist hikers may be delayed due to limited staff, the number of rescue calls, and employee safety requirements.
Before heading down trail, the park encourages hikers to read the Key Hiking Messages webpage for current information on inner canyon conditions.