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Klokočské skály

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Coordinates 50° 35′ 40″ N, 15° 13′ 27″ O

View to the Klokočské skály from Kozákov

The Klokočské skály (German: Klokotscher Felsen) are a sandstone rock area near Turnov in the Bohemian Paradise. The 228.13 hectare area has been designated as a nature reserve since 1985.

Description

The Klokočské skály are a highly visible rocky outcrop about 60 metres high and 1600 metres long above the village of Klokočí, about four kilometres north-east of Turnov

Only a few rock towers were split off from the compact sandstone slab. Worth seeing rock towers are the Jug(Džbán) and the Town Hall(Radnice). The rounded rock formations are also called elephants.

The compact rock bar is partly heavily hollowed. The most famous of these cavities is Postojna Cave, also called America, in the Zelený důl valley

The northernmost part of the rock group is called Betlémské skály(Betlehem Rock). There are numerous caves in it as well. Special sights are the Klokočské Průchody(Klokotsch Labyrinth) and the Rotštejn(Rothenstein) castle ruins in the southern part of the area. This rock castle dates back to the 13th century and, as was customary at the time, was built mainly of wood. Therefore, the only parts of the castle that have been preserved are the rooms carved out of the rock, wells and parts of the wall. It was built by Jaroslav and Havel of Markvartice – the founders of the town of Turnov.

Geology

A special feature of the Klokotscher rocks is the concentration of many geomorphological sandstone forms in an area of only 3 km². The rocks consist of sandstone of the Turonian (Upper Cretaceous). They are located near the Lusatian fault and have always been on the edge of the sedimentary basin. These conditions caused the deformation of the boulders to be inhomogeneous. In addition to faults and tilted sedimentary layers, the area is particularly characterized by concretions. These spherical formations, up to one metre in diameter, were the least resistant parts of the rock and thus the most exposed to weathering. The remains of opened concretions, cleared by animals or washed out by rainwater, have remained as cavities or caves in the rocks and give them their present characteristic shape.

Literature

  • Jan Mertlík: V čem se liší Klokočské skály od zbytku světa? (with English summary: What Makes Klokočské skály Rocks Different from the Rest of the World?) In: 50 let CHKO Česky Ráj. Sborník referátů z mezinárodní konference konané ve dnech 20. až 22. října 2005 v Lázních Sedmihorkách. Turnov 2006, ISBN 80-86254-14-3, p. 78-82

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