Zadrna (German: Zieder) is a river in Lower Silesian Voivodeship in southwestern Poland, a right tributary of the Bóbr. It rises in the Góry Krucze range of the Central Sudetes near the village of Błażejów, close to the border with the Czech Republic.

This article may be expanded with text translated from the corresponding article in Polish. (October 2011) Click [show] for important translation instructions. View a machine-translated version of the Polish article. Machine translation like DeepL or Google Translate is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Polish Wikipedia article at [[:pl:Zadrna]]; see its history for attribution. You should also add the template {{Translated|pl|Zadrna}} to the talk page. For more guidance, see Wikipedia:Translation.

Zadrna
Zadrna River in Kamienna Góra
Location
Country	Poland
Physical characteristics
Source
• location	Góry Krucze near Błażejów
• coordinates	50°39′40.5″N 16°1′44.1″E
• elevation	600 m (2,000 ft)
Mouth
• location	Bóbr in Kamienna Góra
• coordinates	50°47′12″N 16°2′21″E
• elevation	440 m (1,440 ft)
Length	16 km (9.9 mi)
Basin size	112 km2 (43 sq mi)
Basin features
Progression	Bóbr→ Oder→ Baltic Sea

На других языках

[de] Zadrna