Any imagine the temps down in the canyon with the heat wave there now.
It was 93 at Phantom Ranch on April 3 when I did it. I think I heard it was above 110 a few days ago.
I worked out the the Nevada desert for years not far from Death Valley. 108-110 was common. You learn quick,never to leave a tool out in the sun when we work outside. We weekended in Vegas and it was usually 103-104.
Before I retired in 2003,I was sending crews to Saudia, down in the SE Empty Quarter 130 common