Prachovské skály (rocks)Prachovské skály (rocks)

The Prachovské Skály nature preserve is one of the most popular regions in the Czech Republic. It is one of the oldest nature preserves in the country. 


The Hruboskalsko is one of the best-known rock formations. It is characterised by impressive towers reaching up to 55 m and also by steep canyons. 

Bozkovské Dolomite CavesBozkovské Dolomite Caves

The dolomite caves with the largest underground lake in Bohemia.


Průrva Ploučnice

Mácha Region

Noviny pod Ralskem, 471 24

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The Průrva Ploučnice - Ploučnice Gap, nicknamed the Devil`s Throat or the Thunderbolt is a truly interesting technical monument.

The structure is, in fact, an underground drive of a former iron-mill. Because of the length of 150 m and the tunnel height 6 m, the work is truly unique. In this passage, the whole Ploučnice River was directed, running through some 50 m between tall sandstone walls to disappear in the right angle in a tunnel. After a short time, the water appears in an open recess, to proceed through the long tunnel. In the 19th century, a local miller used to take visitors for a ride at night by torch light, and the visitors were really amazed with the technical miracle.

Locality: Near the village Noviny pod Ralskem, 3 km to the southwest of Stráž pod Ralskem.

Related articles

Prameny Ploučnice, author: Milan Drahoňovský

Průrva Ploučnice, author: Jan Pasler

Technical Monuments: Other technological sites

Průrva Ploučnice, author: Jan Pasler
Průrva Ploučnice, author: Jan Pasler
Průrva Ploučnice, author: AZfotky


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