Badwater Basin in Death Valley National Park in California is one of the hottest places in the world and is the point of the lowest elevation in North America at 282 feet below sea level. This photo was taken at that lowest point. The day I was out taking photos, it was in April and the temperature was 98 degrees. To me, of course, this would be considered to be a pleasant spring day temperature having lived in the low desert most of my life. The contrast was that we left Provo, Utah the day before with temperatures in the 30s and an imminent snow storm. Here is a description of the valley from Wikipedia: Death Valley.
Located near the border of California and Nevada, in the Great Basin, east of the Sierra Nevada mountains, Death Valley constitutes much of Death Valley National Park and is the principal feature of the Mojave and Colorado Deserts Biosphere Reserve. It is located mostly in Inyo County, California. It runs from north to south between the Amargosa Range on the east and the Panamint Range on the west; the Sylvania Mountains and the Owlshead Mountains form its northern and southern boundaries, respectively. It has an area of about 3,000 sq mi (7,800 km2). The highest point in Death Valley itself is Telescope Peak in the Panamint Range, which has an elevation of 11,043 feet (3,366 m).