State nature preserve is the second biggest peat-bog in the Jizera mountains. It lies in the almost imperceptible valley of the Jizerka, to the north-west of the village of the same name. Acces to the preserve along the Smědava - Jizerka road according to the tourist signs of the nature study path which ends here. In this country the peat-bog is a unique example of peat meadows with pools and small lakes, knee-pines and dwarf spruce trees. Occasionally the visitor comes across a juniper tree and a downy willow. The Jizerka, Safírový and Pařezitý rivers flow through this part of the mountains.