Chongqing to wulong by rail

I think you can buy tickets from both South or North Square, but to take the train, it should be from the South Sqaure as they are normal slow types.

Chongqing North Station(at south square).south square is a train station for normal speed trains,because there is only normal speed trains to wulong,so you can only by normal speed tickets .remember:Chongqing North Station(south square),not Chongqing Railway Station(they are two diffrent and distant stations), and when you arrive near the station,don't go to north square,north station is for high speed train,your train is not there.a lot of visitors and new comers missed their train because they didn't konw the diffrences between north square and south square.