The Nevada desert is the hottest region of Nevada state in the USA.
It is also where the battles are fought there. Like Hulk vs Hulkbusters, Absorbing Man,and two S.H.I.E.L.D. agents, Hawkeye and Black Widow are the examples.
In "Gamma World Pt.2", a dying Abomination was crawling in that desert before being found by Baron Zemo and the rest of the Masters of Evil in their intent to recruit him into their new team against the Avengers.