The picture in Expananation is from Wikimedia: https://commons.wikimedia.org/wiki/File:Death_Valley_Mesquite_Flats_San…;
Attributed to: Tuxyso
License: Creative Commons Attribution-Share Alike 3.0 Unported
For more information about the Death Valley see the followinng links
Wikipedia: https://en.wikipedia.org/wiki/Death_Valley
US National Park service: https://www.nps.gov/deva/index.html