Geographical position of the Jizera Mountains

The Jizera Mountains are the northernmost range in the Czech Republic and are situated between the Lusatian Mountains and the Giant Mountains. They take their name from the Jizera River, which rises on a slope of the highest mountain, Smrk. Plateaus surrounded by granite hills and numerous peat bogs are characteristic of the area. Granite is the main rock here.

The Jizera Mountains and their peaks

There are nearly thirty peaks in the “Jizerky” that exceed the one-thousand meter mark. Some of them, however, are situated in the Polish part of these mountains, where the highest peak of the Jizera Mountains - Wysoka Kopa (1126 m above sea level), is also located. The highest mountain in the Czech part is Mt. Smrk (1124 m above sea level). Other important peaks of the Czech Jizera Mountains are Černá Studnice, Tanvaldský Špičák, Severák and Oldřichovský Špičák, but these are below one thousand meters in height.

Local water management

There is an extensive network of water courses in the Jizera Mountains but there are not many non-artificial bodies of water. The only ones that are natural are local peat bogs and pools. All the other, larger ones, were created by people mainly during the 19th century when water structures were purpose-built to power local sawmills and glass grinderies. As time passed, larger reservoirs were built – dams. One of the reasons for these constructions was also some of the damaging floods that have hit the Jizera Mountains, for example, in 1897. The creator of the project, to build the first dams in Bohemia was Otto Intze. The construction led to numerous discussions and worries at that time, nevertheless, the project was executed almost completely, with just one exception. Instead of the six dams that were originally planned, just five were built (Harcovská Dam, Bedřichovská Dam, Mníšecká Dam, Mlýnická Dam and Jablonecká Dam). In 1951 two more dams were added– the dam on Bílá Desná, which ruptured a year after it was finished, and Soušská Dam, which is a source of drinking water for Jablonec nad Nisou still today. The Josefův důl reservoir, which was built during the years 1976-82, provides drinking water for Liberec and the Českolipsko area.

Liberec, Jablonec nad Nisou, Frýdlant, Desná and Tanvald are situated in the vicinity of the mountains.

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