Before revision: 300px|The Badwater Basin in Death Valley, California, the nadir of the North American Continent In topography, a nadir is a point on a surface which is lower in elevation than all points immediately adjacent to it.
After revision: 300px|The Badwater Basin in Death Valley, California, the nadir of the North American Continent In topography, a nadir is a point on a surface that is lower in elevation than all points immediately adjacent to it.