Kaltbründlberg, Mountain summit in Hietzing district, Vienna, Austria.
Kaltbründlberg is a summit in Vienna's Hietzing district that reaches approximately 508 meters in elevation. The Hubertuswarte observatory stands at its peak, offering views of the surrounding land and forest.
The mountain took its name in 1925 from a cold spring called Kaltbründl on its eastern side, which belonged to the Gütenbach stream. The name reflects the natural water sources that have shaped the area for centuries.
The mountain sits within the Lainzer Tiergarten game reserve and draws visitors who follow the marked paths and use the observation points. The trails show how locals and tourists treat this spot as an escape from city life.
The location in Vienna's 13th district provides straightforward access to several hiking paths with multiple starting points throughout the area. You can visit any time of year and choose routes based on your fitness level and interests.
The southern slopes contain sections of the Gütenbach's source, which flows through flysch rock formations into the Reiche Liesing stream. This geological feature reveals how mountain water moves through the landscape and connects different ecosystems.
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