RAILWAY TRAVEL FROM SHANGHAI TO MONGOLIA/GREAT WALL OF CHINA THEN INTO THE GOBI DESERT ROUND TRIP.

You can take the T282 from Shanghai to Hohhot. You can find the railway information on the website of TravelChinaGuide. There are a lot of trips from Hohhot to Beijing and you can choose one according with your references. And then you can back to the Hohhot and go to the Gobi Desert by bus.