Kořenov () is a municipality and village in Jablonec nad Nisou District in the Liberec Region of the Czech Republic. It has about 900 inhabitants. It lies in the Jizera Mountains. Administrative parts Villages of Jizerka, Polubný, Příchovice and Rejdice are administrative parts of Kořenov. Geography Kořenov is located about east of Jablonec nad Nisou, on the border with Poland. It lies in the Jizera Mountains and in the eponymous protected landscape area. The highest point is the mountain Černý vrch at above sea level. The Jizera River forms here the entire Czech-Polish border and then shortly crosses the territory of Kořenov. History The first settlers came to the remote forested area in northern Bohemia in 1577 when German Paul Schierer (von Walthaimb zu Falkenau) established glassworks at Rejdice. After the 1620 Battle of White Mountain, the lands were seized by Albrecht von Wallenstein, who sold them to the comital Desfours dynasty. The estates were acquired by the noble House of Rohan in 1824. In 1902, the Tanvald–Kořenov cog railway connecting to the electrified Izera railway line running to Silesian Hirschberg (present-day Jelenia Góra) was put into operation. Until 1918, Bohemian Unter Wurzelsdorf belonged to the Cisleithanian part of the Austro-Hungarian monarchy, in the Bezirk (district) of Gablonz (now Jablonec nad Nisou), one of 94 Bohemian Bezirkshauptmannschaften. A post-office was opened in 1886 named Wurzelsdorf. The municipality was established in 1960 by the merger of the former market towns of Polubný and Příchovice with Rejdice and Jizerka. Kořenov was only an administrative part of Polubný, however the new municipality adopted its name. Part of Kořenov, the former hamlet of Údolí Naděje (Hoffnungstal, ) previously belonged to the Silesian side of the Sudetes, it passed to Czechoslovakia in 1958. Demographics Transport Kořenov lies on the railway line from Liberec to Szklarska Poręba. Sights Štěpánka is the oldest observation tower in the Jizera Mountains. It was built on Hvězda mountain () in 1847. The tower is high and belongs to the most popular tourist destinations in the mountain range. Tesařov chapel is a protestant chapel, built according to plans of Otto Bartning in 1909. Today si is used by the Moravian Church. The Church of Saint John in Polubný was built in 1789–1793. It is a Neoclassical building with Neoromanesque interiors. The Tanvald–Harrachov cog railway passes through Kořenov. It was built in 1899–1902. It is known for the steepest gradient of a