Velký zvon, Mountain summit in Upper Palatine Forest, Czech Republic

Velký Zvon (German: Plattenberg) is a 862-metre forested summit in the Český les near Bělá nad Radbuzou, close to the Bavarian border. Its top is occupied by a fenced military radar and radio-surveillance tower of the Czech armed forces, built during the Cold War and still in use.

Chronicles and finds on the summit indicate a castle stood here in earlier centuries, and old masonry was uncovered during military construction but never examined. The Zvon lay in the domain of the Kotz family, seated at nearby Heiligkreuz; iron mining in the surroundings is attested by finds, remains and place names. From 1969 to 1975 the army built the present eight-storey, forty-metre tower.

The summit was once called simply Zvon, while the neighbouring peak Malý Zvon was called Zvonec; both names appear on state maps from 1983. In the 19th century the Kotz family of nearby Heiligkreuz laid out the bare summit as a park with paths, stairs and benches, and named a viewpoint Kocova vyhlídka (Kotz's View).

The military road leads up to the fenced compound gate; the summit itself is closed to the public, last opened on 8 May 2010. About 100 m before the iron gate, turn right through the forest to reach the Kotz inscriptions on the rock ledge.

The summit is fenced and closed to the public, but about 100 metres from the iron gate, on the south side just below the top, a rock outcrop called Kocovy kameny bears inscriptions carved between 1800 and 1936. They record outings by the Kotz von Dobrz and Trauttmansdorff families.