[rconti]

I was on a hiking trail over by Lake Mead and there are big gates saying something like "Closed June-October" / YOU WILL DIE :)

Thankfully we were there in march.

[schaefer]

that sign is legit. if the ambient temperature is 117, the sunshine bouncing around in those canyons can get surface temps up to 130. add visitors that head out on desert hikes without any water... and it's trouble.