So, today we left Lone Pine, and made our way down hwy 190, through Death Valley, and on to Las Vegas. Death Valley is one of those places that you could never forget - you start at about 4000ft elevation at the entrance to the park. Then it's a series of switchbacks and ever-increasing temperatures, all the way down to Stovepipe Wells, which is at around sea-level. When we started out in Lone...