Volcanic phenomena
Windsborn-Kratersee, © Eifel Tourismus GmbH - Dominik Ketz

Volcanic phenomena

As well as the water-filled maars, the Eifel has other special volcanic features.

As well as the water-filled maars, the Eifel has other special volcanic features. These include the “Wallender Born”, or “boiling spring” cold water geyser, which breaks out every 30 minutes or so. Or maars which have already silted over and the only mountain crater lake north of the Alps (Windsborn crater lake). In old stone quarries, you can take a close look at lava flows.


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Führung im Lavakeller Mendig, © Eifel Tourismus GmbH, D. Ketz

Lavakeller – Unterirdische Kathedrale aus Basalt

There are many steps leading deep down below the town of Mendig: Here in the lava cellars, in the middle of the cooled volcanic rock, it is consistently cold even in the hottest summers, there is a mysterious dim light, there is the smell of moisture. Up to 28 Mendig breweries used the 32-metre-high, cathedral-like halls in the basalt rock to store fresh beer. Mighty pillars, left standing during centuries of basalt and lava mining, support the gigantic cellars. A guided tour through the cellars is an unforgettable aha experience. The Vulkan Brewery in Mendig, which is located above the cellars, still uses this unique cold storage facility today. The Lava Dome as a multimedia museum shows many more exciting facets of volcanism.

Vulkanparkstation Mayener Grubenfeld, Felswand, © Rheinland-Pfalz Tourismus GmbH, D. Ketz

Vulkanparkstation Grubenfeld

Mayen´s pit field is oner of the oldest and most important mines of basalt lava. This porous stone is perfectly suitable for grain grindings am millstones. A tour leads through the mine landscape, in the depth of the petrified lava river of the Bellerberg volvano with ist bizzare pillars. Roman mining traces can be found near a modern crane from the 20 th century. The sculpture park "LAPIDEA" is also on this area which is used for all kinds of events an by arches as training camp.