I had just recently visited Death Valley myself, and it was far more beautiful than I expected. I did not fly there as I believed it was prohibited, being a National Park I've heard that if you get caught you can lose the drone (confiscated) and face very heavy fines. If you check KittyHawk, you will find that Death Valley is listed as a National Park and flying is prohibited. I never heard of the distinction between sites that are managed by NPS vs BLM. I do not believe the rules make a difference, and so I still believe that you are not allowed to fly there. That said, I did check out Carizzo Plain National Monument and it is a Let's Fly Zone in KittyHawk, so I guess it is OK to fly there. Part of the issue is that the title of the video posted includes Death Valley. Are the dunes that are shown in the 1st part of the video from Death Valley National Park, or are they also from the Carizzo Plain National Monument. If the latter, why is Death Valley in the video title??