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22 stops in the Bohemian Paradise Geopark

Bohemian Paradise

Let us present 22 locations and phenomena which are really worth seeing from amongst the Bohemian Paradise Geopark`s countless interests. Their descriptions will help you realise the entire area`s tremendous geological diversity.

1. Roofing slates near Železný Brod
The surroundings of Železný Brod is an area which was formed by a metamorphosis of almost 400-million-year-old clay sediments to phyllites, which were used as roofing material for centuries.

2. Rock wall
Situated west of Malá Horka, 500 m to the north-west of the swimming pool in Železný Brod. This is up to 20 m tall formation of resistant quartzite with depth of 10 m.

3. A window into the geological past on the Rieger Trail
The Jizera River forms a deep rocky valley of approximately 3 km between Bítouchov and Podspálov. During the past five million years it has cut impressively deep and has not stopped. The power of the river is caused by the gradient, which reaches ten per mille in this area. The trail commemorating JUDr. Ladislav Rieger, a famous native of Semily and Czech politician of the 19th century, is the pearl of the Bohemian Paradise Geopark. The bare rock speaks of history of hundreds of millions of years.

4. Underground lake near Bozkov
The Bozkov Caves, a place of national natural heritage, is situated at the northwest edge of Bozkov, approximately 6 km to the east of Železný Brodu. The karst phenomena in dolomite calcite is formed by two originally separate systems. Its length of 1050 m ranks this area north-east Bohemia's largest accessible cave system. The deepest parts of the cave, flooded with water, create an underground lake.

5. Na Strážníku boulder sea and rock town
The Strážník hill, about 3 km long and famous for the occurrence of "star quartz" stretches between Jilemnice, Mříčná, Peřimov and Bystrá. Its western spur, location called "Na Jírově", features Europe's rarity, a melaphyr rock town. The rocks fall to the valley in steps creating up to 20-metre walls. The efflorescence caused by frost and accompanied by collapses of rock blocks has divided the nearly two-kilometre rock wall into a system of rock towers surrounded by debris, the so-called boulder sea.

6. Giant potholes
The Jizera River has hollowed a short gorge with steep cliffs along the northern border of Strážník, below the village of Háje. It has cut dozens of the so-called giant potholes in the boulders on the banks and the river bed. These potholes are created by the activity of the water, which carries sand and pebbles whose rotation movement grinds up to several decimetres deep oval holes in fine-grain rocks.

7. Kozinec (561 m) near Jilemnice
Its peak consists of melaphyr cover, which used to be exploited in several quarries. The melaphyr subsoil contains a several-metre-deep layer of the so-called cuprous sandstone. The copper ore is formed by finely interspersed cuprum sulphides accompanied by green malachite and blue azurite. In addition to the occurrence of the copper ore, the interests of this area also include the occurrence of petrified trunks of Paleozoic woods.

8. Frýdštejn
The Paleozoic melaphyr rocks create volcanic formations stretching across 40 km from Proseč pod Ještědem to Kozákov. There is a quarry one kilometre to the east of Bezděčín and about 10 km to the north of Turnova. Crystal, smoky quartz, amethyst, agate and jasper are gemstones occurring in the diabase fillings.

9. Kozákov (744 m)
Has been formed by repeated volcanic activity. 260 million years ago, andesitic lava rich in gases erupted and solidified as diabase. This rock, traditionally referred to as melaphyr is famous for the occurrence of agate and hollows with crystal, amethyst, citrine, calcite and zeolite. In 1920 the renowned Votrubec quarry was set up in the melaphyr and has become a tourist attraction with an exposition of precious stones.

10. Basalt lava streams with olivine
On the northern slopes of Kozákov, there are lava layers of basalt, up to 30 metres deep. The vulcanites, which are 4 to 6 million years old, are famous for the occurrence of so-called olivine balls. These scraps of rocks of the outer layers of the earth's envelope consist mainly of olivine reaching the quality of a gemstone.

11. Petrified forest
Petrified pieces of wood can be found in a stretch of land from Újezdec pod Bradlcem in the west from Nová Paka to the surroundings of Pecka. The largest piece of an araukarite trunk ever discovered, 18 m long, is exhibited in a garden of Sucharda's house in Nová Paka. Agates too can be found in Nová Paka and its surroundings. Their deposits are scattered in the area from Lomnice nad Popelkou, Karlov and Žďár as far as Stará Paka and Levín, to Kozinec via Čistecká hůra, Rovně and Dolní Kalná.

12. Trosky (488 m)
These are bare remnants of a volcano whose explosions perforated the bedrocks of the Bohemian Cretaceous Basin. Both hills formed by the harder and more resistant rock have been preserved in the shape of two towers, symbols of the Bohemian Paradise.

13. Apolena
The rock town of Apolena borders the south-eastern slopes of Trosky.

14. Prachovské Rocks
are formed by a remnant of a sandstone plateau with deep ravines, gorges and valleys, where erosion has created a unique work of art with tall and extended rock towers.

15. Podtrosecká valleys
are decorated by picturesque lakes and rocks.

16. Hruboskalské rock town
occupying the area of 4.24 km2, represents the Bohemia Paradise's most developed sandstone rock town with hundreds of impressive rock towers.

17. Klokočské and Betlémské rocks
formed by quartzite sandstone, occupying 2.09 km2 and featuring around 300 caves.

18. Kozlov - Chlum rock town
situated near Všeň and occupying an area of 0.45 km2 this rock town is a rare rock phenomenon of two blocks towering close to one another. The sandstone layer is only about 20 m deep.

19. Suché rocks
divided along three crack directions into three towers and a number of separate spurs, which create a characteristic silhouette on the other side of Jizera, opposite Pantheon.

20. Sokol
is a small rock area above Malá Skála and has the most complicated and varied relief in the Bohemian Paradise. The interesting locations include the hill of Zbiroh (452 m above sea level) with the ruins of a castle followed by a rocky ridge and plateau which then drop to Jizera in two levels of rock faces.

21. Příhrazské rocks
skirt the edge of the jagged Mužský plateau within view of Mnichovo Hradiště.

22. Plakánek valley
with the fluvial plain of Klenice stream (2 km) is terminated by a rock tower on which the Gothic-style castle of Kost was built.

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