This is because at one point many years ago, the countries you know now were all connected. It was called Pangaea. Since all the countries were one huge land, the dinosaurs could go as they pleased. Near the end of the time of the dinosaurs, Pangaea began to break apart and become separate countries. The dinosaurs that may have died on let's say a corner of Pangaea is now on Antarctica. Does this make sense?
It's located near the Pleiku area in the Central Highland of Vietnam. On November 1965, this valley became the battle ground between United States and North vietnam in the battle of La Drang
