Cars going over sand dunes............dune buggies.......................in the Gobi Desert....per the movie...............but the clue is to the area of Ca just West of Yuma, AZ.......Winterhaven.......CA......is on the other side of the Colorado river.....which marks the dividing line between the states............the agriculuture check point........like the one in the movie.................in Ohio......Israel and I............would pass the thing.........to double date Amalia and Lupita....................................u couldn't bring CA produce into Arizona or the other way around.......i forget exactly......but for some reason they would ask you if u were bringing fruits and vegetables state to state..........a lot of produce.........production.....crops in the Imperial Valley.........and in Yuma........i would jog through the orange groves.................lemons, etc......right next to the base at Yuma.....which is an air station.......thus the helicopters.......in this........in China's Gobi desert........but they are referring to Yuma..............and Los Algodones, Mexico...................

Close Encounters of The Third Kind - Ship In The Dessert

 

 

https://www.youtube.com/watch?v=cTcKFCw2MO0