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Carpathian heritage

Ostravice river bed

General information

The Ostravice river bed was declared a natural monument in 1966. This Natural Monument protects the rock outcrops in the river bed.

Non-living nature

In the random placed rock outcrops in the river bed we can see the Carpathian flysch formation several meters long. The protected area is defined around the thrust of the Silesian nappe unit to the Sub-Silesian unit, which come out in the Frydlant Tectonic Window . The Sub-Silesian unit is represented with the Frýdek formation in the non-flysch development of calcareous clays. The rock layers are intensely folded. The Silesian nappe unit is represented with the strongly flysh Těšín-Hradiště formation of the age of the lower cretaceous chalk. The flysch sequences typically of decimetre sizes are composed of blue-grey, fine to moderately grainy calcareous lime stones and dark grey calcareous clays, where some micro-fossils were found.

Living nature

The river is lined with the dominant sycamore maple -Acer pseudoplatanus, alder -Alnus glutinosa and ash tree – Fraxinus excelsior. Reynoutria japonica is an alien species very rapidly spreading along the banks of the river. This bit of the river is a permanent home for Cotus poecilopus and we can also find here Zootoca vivipara and Natrix natrix. The hollows and cavities of steep hills give shelter to Cinclus cinclus . Since 1993 we could regularly observe otters – Lutra lutra – that live here as well.

Reynoutria Spp.

Reynoutria Spp.

Natrix natrix

Natrix natrix

GPS position

N 49° 33.092', E 18° 22.900'



Krajský úřad Moravskoslezského kraje, odbor životního prostředí
28. října 117, 702 18 Ostrava
Tel.:+420 595 622 297