The global trade station is in Jubilife city.
where in jublife city!
you can get the trade Pokemon in jubilife city from the global trade station
global trade station{gts}
before you can trade you have to get internet
You would have to trade it from somewhere like on the Global Trade Station.
You have to migrate or trade. I suggest the global trade station (GTS)
I'm pretty sure that the only way to get another starter Pokemon in Pokemon diamond is to go to the Global Trade Station (GTS) and trade with someone.
migrate from emerald , ruby or the othertrade it on the global trade station
There are two ways of getting Groudon on Pokemon Diamond. The First way is trade it with people in the GTS (Global Trade Station). Or you can migrate it from Pokemon Emerald, Ruby, or Sapphire.
you need a Nintendo wi-fi connection cable
You can either get it by capturing it in Pokemon Silver in the Safari Zone. Or by trading it on the Global Trade Station in Pokemon Diamond, Pearl, or Platinum.
In Jubilife city. You can see the Pokemon school. Now go left. That's all!
the global trade station