Tvarožník, Rock formation at Polish-Czech border in Karkonosze National Park, Poland and Czech Republic.

Tvarožník is a granite rock about 12.5 m high on the western slope of Sokolnik, at roughly 1,320 m above sea level on the Polish-Czech border. Its summit carries a flat block, and the granite shows irregular jointing. It stands about 450 m northeast of the Vosecká bouda hut, with views into Poland toward Szrenica.

The rock takes its name from the making of Karkonosze cheeses, as both its Polish and Czech names recall quark; German sources call it Quargsteine or Quarksteine. It stands on the Polish-Czech border about 450 metres north-east of the Vosecká bouda mountain hut, on the western slope of Sokolnik at roughly 1320 m above sea level.

The name recalls the making of Karkonosze cheeses (Quarksteine in German, Tvarožník in Czech). A flat rocking stone crowns the summit block, and from it visitors look into Poland toward the nearby peak Szrenica. The red-marked Polish-Czech Friendship Trail passes directly beside the rock.

Multiple marked hiking trails approach the site from both sides of the border, with winter visits requiring extra gear like crampons or microspikes. Visitors should prepare for rapidly changing weather conditions at this elevation and bring suitable clothing.

The name recalls the making of Karkonosze cheeses: Quargsteine in German, Tvarožník in Czech. The flat block on the summit is a rocking stone, a viklan, and from it you look into Poland toward Szrenica. A yellow Czech and a green Polish trail meet at the nearby Vosecká bouda–Tvarožník/Szrenica border crossing.