information:classification
Geography

Poland covers an administrative area of 312,722 km (120,743 sq mi), and is the ninth-largest country in Europe. Approximately 311,895 km (120,423 sq mi) of the country's territory consists of land, 2,041 km (788 sq mi) is internal waters and 8,783 km (3,391 sq mi) is territorial sea. Topographically, the landscape of Poland is characterised by diverse landforms, water bodies and ecosystems. The central and northern region bordering the Baltic Sea lie within the flat Central European Plain, but its south is hilly and mountainous. The average elevation above the sea level is estimated at 173 metres.

The country has a coastline spanning 770 km (480 mi); extending from the shores of the Baltic Sea, along the Bay of Pomerania in the west to the Gulf of Gdańsk in the east. The beach coastline is abundant in sand dune fields or coastal ridges and is indented by spits and lagoons, notably the Hel Peninsula and the Vistula Lagoon, which is shared with Russia. The largest Polish island on the Baltic Sea is Wolin, located within Wolin National Park. Poland also shares the Szczecin Lagoon and the Usedom island with Germany.

The mountainous belt in the extreme south of Poland is divided into two major mountain ranges; the Sudetes in the west and the Carpathians in the east. The highest part of the Carpathian massif are the Tatra Mountains, extending along Poland's southern border. Poland's highest point is Mount Rysy at 2,501 metres (8,205 ft) in elevation, located in the Tatras. The highest summit of the Sudetes massif is Mount Śnieżka at 1,603.3 metres (5,260 ft), shared with the Czech Republic. The lowest point in Poland is situated at Raczki Elbląskie in the Vistula Delta, which is 1.8 metres (5.9 ft) below sea level.

Poland's longest rivers are the Vistula, the Oder, the Warta, and the Bug. The country also possesses one of the highest densities of lakes in the world, numbering around ten thousand and mostly concentrated in the north-eastern region of Masuria, within the Masurian Lake District. The largest lakes, covering more than 100 square kilometres (39 sq mi), are Śniardwy and Mamry, and the deepest is Lake Hańcza at 108.5 metres (356 ft) in depth.