Polish mountains - Tatras
The Tatra Mountains, Tatras or Tatra (Tatry either in Slovak (pronounced ?tatri) or in Polish (pronounced ?tatr?)- plurale tantum), are a mountain range that form a natural border between Slovakia and Poland. They are the highest mountain range in the Carpathian Mountains. The Tatras should be distinguished from the Low Tatras (Slovak: NÃzke Tatry) which are located south of the Tatra Mountains in Slovakia.
The Tatra Mountains occupy an area of 785 square kilometres (303 sq mi), of which about 610 square kilometres (236 sq mi) (77.7%) lie within Slovakia and about 175 square kilometres (68 sq mi) (22.3%) on the territory of Poland. The highest peak, called Gerlach, at 2,655 m (8710 ft) is located north of Poprad. The highest point in Poland, Rysy, at 2,499 m (8200 ft) is located south of Zakopane.
Źródło: https://en.wikipedia.org/wiki/Tatra_Mountains
Some facts worth to know
Poland (Polish: Polska ?p?lska ( listen)), officially the Republic of Poland (Polish: Rzeczpospolita Polska,a About this sound listen (help?info)), is a country in Central Europe,11 bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine and Belarus to the east; and the Baltic Sea, Kaliningrad Oblast (a Russian exclave) and Lithuania to the north. The total area of Poland is 312,679 square kilometres (120,726 sq mi),9 making it the 71st largest country in the world and the 9th largest in Europe. With a population of over 38.5 million people,9 Poland is the 34th most populous country in the world,12 the 8th most populous country in Europe and the sixth most populous member of the European Union, as well as the most populous post-communist member of the European Union. Poland is a unitary state divided into 16 administrative subdivisions.
Źródło: https://en.wikipedia.org/wiki/Poland
Lower Silesia - what it is?
Lower Silesia (Polish: Dolny Śląsk; Czech: Dolnà Slezsko, Latin: Silesia Inferior; German: Niederschlesien; Silesian German: Niederschläsing; Silesian: Dolny Ślůnsk) is the northwestern part of the historical and geographical region of Silesia; Upper Silesia is to the southeast.
Throughout its history Lower Silesia has been under the control of the medieval Kingdom of Poland, the Kingdom of Bohemia and the Austrian Habsburg Monarchy from 1526. In 1742 nearly all of the region was annexed by the Kingdom of Prussia and became part of the German Empire in 1871, except for a small part which formed the southern part of the Lower Silesian Duchy of Nysa and had been incorporated into Austrian Silesia in 1742. After 1945 the main part of the former Prussian Province of Lower Silesia fell to the Republic of Poland, while a smaller part west of the Oder-Neisse line remained within East Germany
Źródło: https://en.wikipedia.org/wiki/Lower_Silesia