In the 19th century, a roughly 40 meter wide and 22 meter high "quartz-poor porphyry" was visible through a quarry. About 290 million years ago, porphyry magma escaped explosively from the “Grunder column”. The material buried valleys and valleys and gradually cooled down. When cooling down, the volume decreased - first on the surface, then ever deeper. As a result, cracks formed until the columnar rock segregation ultimately emerged.

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Hike with Maik⛰️🌲🏃

May 22, 2021

Hiking

Very interesting geological rock formations. It is about 10 minutes from the Mohorn-Grund hiking car park to the porphyry fan.

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Wanderhase🐰

April 23, 2023

Hiking

With its special and varied geological features (e.g. with formations and rocks from various geological eras), the Tharandt Forest forms the core of the Geopark Sachsens Mitte. There is now a new, beautifully designed shelter near the fan, ideal for resting & learning about geological events.

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Informations

Elevation 360 m

Weather

Tuesday 5 May

21°C

11°C

44 %

Additional weather tips

Max wind speed: 22.0 km/h

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Take Me There

Location: Wilsdruff, Saxon Switzerland-East Ore Mountains, Saxony, Germany

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Porphyry Fan in the Tharandt Forest

#1.

Jungfernloch Cave – Lake Triebisch loop from Kurort Hartha

#2.

Lake Triebisch – Jungfernloch Cave loop from Grund

#3.

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