Dub v lese Sedliska, Remarkable oak tree in Závada, Czech Republic.

Dub v lese Sedliska is a summer oak (Quercus robur) at the edge of the Sedlisko forest, on the border with the Píšť cadastre. Its trunk measures 4.66 m in girth at breast height and the tree stands 25 m tall.

The tree was granted protected status in 2009 and scientific estimates suggest it has lived for more than 250 years. This extended lifespan makes it a living record of the region's natural history.

The oak is known locally by its Czech name and stands at the forest edge where visitors encounter it during woodland walks. It serves as a natural landmark in the community's daily landscape.

A protected zone extends approximately 30 meters around the tree, which visitors should respect during their visit. Reaching it is straightforward as part of a forest walk, but maintain distance to support ongoing conservation efforts.

The oak stands on the edge of the Sedlisko forest, on the boundary with the cadastre of Píšť, so its protected status covers ground in two cadastral areas. Its crown reaches 25 m while the trunk measures 4.66 m around at breast height.