Souš Dam

The strange ruin of what was once a Gothic castle, founded at the end of the 14th century by the family of Vartenberk, has become the main symbol of the region of Český ráj.

Ruin of Vranov Castle - Pantheon

Vranov Castle, built on the steep rock cliff high above the Jizera River at the beginning of the 15th century, was one of the last castles built in the region.

The Podtrosecká údolí (valleys)

The Podtrosecká údolí (valleys) comprises several little valleys that form an arch to the north and northeast around Trosky Castle.

Bozkovské Dolomite Caves

The dolomite caves with the largest underground lake in Bohemia.

Hruboskalsko

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.

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.

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Back | Places of interest and destinations > Lakes, reservoirs and water courses > Jizera Mountains

Jizera Mountains

Desná, 468 61

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The Souš reservoir was built on the Česná Desná during the 1912-15 period; it flooded nearly 86 hectares.

The water reservoir on the Černá Desná River flooded the locality of a former village founded in 1755. After the catastrophe of the neighbouring dam, the one that burst open in 1916, the builders completely drained it and did not refill the water until all elements have been verified (1925 - 27). This is an embankment dam, the dyke is 364 m long and 21 m high. Until the sixties, the reservoir was used for recreation.

In 1974 the water treatment plant was built and now the reservoir is a drinking water resource for the region of Jablonec. Hence, swimming and fishing is forbidden and the surrounding area is strictly protected.

There road around the Souš dam was repaired; cars may use it to go via Smědava to Bílý Potok and Hejnice on the other side of the mountains, however, only during the summer season, May-October. In winter the road is closed.