I want to know the answer to the following question:
The transition zone between east and west is called what?
All the background I'm provided with is that "In the far eastern part of the state the Chihuahuan Desert dominates due to low precipitation and extremely high temperatures; some areas of the eastern part of the state are so dry no vegetation is found like the Sand Dunes of Samalayuca.". Is that enough to answer the question?
Answer: no