What is the name of the vast wasteland in Southwestern US?|165358

I searched all over the net and can_t find the name of the vast wasteland in southwestern US.

I call it California!
Just kidding.
I think you must be referring to the Mohave desert.
It reaches out to Las Vegas.
For an area map:

http://en.wikipedia.org/wiki/Mojave_Dese��

Texas

Las Vegas

_The Badlands_ in South Dakota may be what you are referring to, but of course that is not in the Southwest.

Las Vegas

The Texas Legislature.

Death Valley? Is that what you might be searching for?

http://www.nps.gov/archive/moja/mojadena��