Oberschlesien

Upper Silesia (Polish: Górny Śląsk [ˈɡurnɨ ˈɕlɔ̃sk] ; Silesian: Gůrny Ślůnsk, Gōrny Ślōnsk; Czech: Horní Slezsko; German: Oberschlesien [ˈoːbɐˌʃleːzi̯ən] ; Silesian German: Oberschläsing; Latin: Silesia Superior) is the southeastern part of the historical and geographical region of Silesia, located today mostly in Poland, with small parts in the Czech Republic. The area is predominantly known for its heavy industry (mining and metallurgy).