Zlatník, Protected summit and nature reserve in Obrnice, Czech Republic

Zlatník is a forested hill of sodalite phonolite in the České středohoří, 522 m high, 5 km northeast of Most above České Zlatníky. Its slopes, reaching 70°, carry frost-weathered rock walls, block fields and cryoplanation terraces; the summit is a national nature reserve of 79.1671 ha declared on 15 April 2017.

Zlatník was declared a national nature reserve on 15 April 2017, covering 79.1671 hectares. The protection covers dry acidophilous oak woods, heath undergrowth and rock-wall plant communities on the phonolite summit. The hill lies in the České středohoří, five kilometres northeast of Most.

The name Zlatník means "gold hill" in Czech, though no gold is documented here; German speakers called it Schladnig Berg. The dry acidophilous oak woods shelter lily-of-the-valley-leaved bellflower (bělozářka liliovitá), Ivan's feather grass and stemless milk-vetch. A red-marked trail from České Zlatníky leads up from the southwest.

A red-marked hiking trail reaches the summit from České Zlatníky to the southwest. The upper slopes are steep, with inclines up to 70°, and the western side is dominated by rock walls. The summit offers views of Most, Počerady, Litvínov and the Krušné hory.

The phonolite summit rises 522 m, about 230 m above the surrounding land, and its slopes reach gradients of up to 70°. Frost weathering has left rock walls, block fields and cryoplanation terraces, and the southwest slope at 470 m holds a registered paragliding launch site.