Usva pillars perm region russia

Stolby (natural monument)
Pillars are rocky outcrops of limestone on the right bank of the Usva River, 5 km from the village of Usva in the Perm Territory, Russia. The height of pillar-shaped remnant rocks above the river level is up to 150 m. A landscape natural monument of the Perm Territory. 79 species of vascular plants have been noted on the territory of the natural monument, including such rare ones as dark red dreamflower (Epipactis atrorubens), Taliev's thyme (Thymus talijevii). The Stolbovoy Grotto on the Usva Pillars has a bone radiocarbon date of 22,890 ± 200 years.