Jizerské hory (Jizera mountains)

Jizerské hory is mountain ridge in the north of Czech Republic and southwest of Poland. It is named after river Jizera. Highest mountain in Poland is Wysoka Kopa (1126 m), in Czech Republic it is Smrk (1124 m). Under mountains there is big agglomeration Liberec-Jablonec-Tanvald with approximately 200,000 inhabitants.