Strelok
The city is situated in a central part of the Mojave Desert.
I'll leave the corrections to native speakers of English, but I'd like to point out that if there's something that exists as one instance, like "central part of the desert", you should use the "the" article. A/AN means "one of". How can "one of the centers of the desert" exist? Is there more than one central part of a desert?

The mistakes I noticed:
a number of casinos, etc,
help with,
far from perfect(ion),
and gambling business centers,
a great number of hotels,
is called Las Vegas Strip,
your texts.