Dude, I moved from there less than a year ago. I can tell you where to ride, but have no idea where to rent since I owned my own quad. If your friends are from there, you can ride on the north side of Nellis AFB. the place is called Apex. It has rock , and dune riding. About an hour and a half away is Dumont dunes. There you can find dunes about 12 stories high(no exaggeration). If you have to rent you can take a tour of death valley, but the tours are lame for regular rides. Thats all I can give you right now. Have fun bro, wish I could go with you.