Death Valley is a desert valley located in Eastern California. It is the lowest, driest, and hottest area in North America. Death Valley's Badwater Basin is the point of the lowest elevation in North America, at 282 feet (86 m) below sea level.
Where in the USA are the lowest point in North America together with the highest point in the contiguous 48 states of the USA?
A major USA dam, completed in 1935, was known as Boulder Dam till 1947 at which point its name was changed to what?
