3 people die from apparent heat-related illnesses at Grand Canyon National Park (opens original article in a new tab)

Three hikers died from heat-related illnesses at Grand Canyon National Park in two separate incidents in June. Park officials warned about extreme midday temperatures and advised visitors to avoid strenuous hiking during those hours.

• Three hikers died from heat-related illnesses at Grand Canyon National Park in two separate incidents on June 12 and June 16.
• Park officials reported temperatures in the inner canyon can reach 109 degrees in the shade during midday hours.
• The park warned visitors to limit strenuous hiking below the rim between 10 a.m. and 4 p.m.