The Iron Gate (Romanian: Porţile de Fier, Serbo-Croatian: Đerdapska klisura/Ђердапска клисура , Hungarian: Vaskapu, Turkish: Demirkapı, German: Eisernes Tor, Bulgarian: Железни врата) is a gorge on the Danube River. It forms part of the boundary between Serbia and Romania. In the broad sense it encompasses a route of 134 km; in the narrow sense it only encompasses the last barrier on this route, just beyond the Romanian city of Orşova, that contains a hydroelectric dam. The gorge lies between Romania in the north and Serbia in the south. At this point, the river separates the southern Carpathian Mountains from the northwestern foothills of the Balkan Mountains. The Romanian and Hungarian names, Porţile de Fier and Vaskapu, literally mean "Iron Gates" and are indeed used to name the entire range of gorges. An alternative Romanian name for the last part of the route is Clisura Dunării, "Danube Gorge". In Serbia the gorge is known as Đerdap and is a national park, with the last part named Đerdapska klisura.