According to a National Park Service news release, the 42-year-old Belgian tourist was taking a short walk Saturday in the Mesquite Flat Sand Dunes in 123-degree heat when he either broke or lost his flip-flops, putting his feet into direct contact with the desert ground. The result: third-degree burns.
“The skin was melted off his foot,” said Death Valley National Park Service Ranger Gia Ponce. “The ground can be much hotter — 170, 180 [degrees]. Sometimes up into the 200 range.”
Unable to get out on his own and in extreme pain, the man and his family recruited other park visitors to help; together, the group carried him to the sand dunes parking lot, where park rangers assessed his injuries.
Though they wanted a helicopter to fly him out, helicopters can’t generate enough lift to fly in the heat-thinned air over the hottest parts of Death Valley, officials said. So park rangers summoned an ambulance that took him to higher ground, where it was a cooler 109 degrees and he could then be flown out.
I bet more people have died at each of the other 3 parks than at Death Valley NP. Maybe there’s data out there on that somewhere
Interestingly, the park service have a very nice dashboard to look at this:
https://www.nps.gov/aboutus/mortality-data.htm
However, it doesn’t give you the deaths per count of visitors.
This article claims Denali, to be the top park in deaths per capita.
https://www.backpacker.com/survival/the-10-most-dangerous-national-parks-in-america/
It looks like Death Valley is up there, but not the highest, due to motor vehicle accidents. This makes sense since going to death valley ends up just being a lot of time in the car.