Bartek, Natural monument oak tree in Zagnańsk, Poland
The Bartek oak reaches a height of 33.5 meters with a base circumference of 13.5 meters and features eight main branches requiring ground support.
Scientific research conducted in 2016 determined through ring counting that the tree dates back to approximately 686 years, revising earlier estimates of 1200 years.
Local traditions state that King Jan III Sobieski stored military items under the tree following his return from the Battle of Vienna in 1683.
The tree remains accessible to visitors through ITS-Poland, which organizes tours primarily for groups of ten or more participants throughout the year.
The trunk contains resin-based filling material, installed during restoration work in the 1960s to replace the original limestone core from the 1920s.
Location: Zagnańsk
GPS coordinates: 50.98336,20.66664
Latest update: September 10, 2025 14:22
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