The Danube Flowing through the Carpathians
The Danube River flows between mountain ranges and forms the border separating Romania, to the North, and Serbia, to the South.
The Retezat Mountains, part of the Carpathian Range above the Danube, are one of the highest massifs in Romania.
The Retezat Mountains have many glacial lakes, including the largest glacial lake in Romania, Bucura Lake (lacul Bucura).
The Carpathians continue south of the Danube; this part of the range in Serbia is known as the Homolje Mountains.
Snow rests on the peaks on both sides of the border, while the valley below through which the Danube flows remains clear.