Ulmener Maar
The Ulmener Maar is a maar in the Eifel mountains of Germany in the immediate vicinity of the town of Ulmen (Eifel), Ulmen in the state of Rhineland-Palatinate. The lake is up to 37 metres deep and is surrounded by an embankment of tuff with an average height of 20 metres, which was formed from the erupted material of the former volcano. By the southern edge of the embankment are the ruins of a knight's castle, Ulmen Castle dating to the 11th century. IUGS geological heritage site In respect of it being the 'youngest volcano in central Europe, situated in Vulkaneifel, the volcanic region where the model of formation of maars by phreatomagmatic eruptions was established', the International Union of Geological Sciences (IUGS) included 'The Holocene Ulmen Maar' in its assemblage of 100 'geological heritage sites' around the world in a listing published in October 2022. The organisation defines an IUGS Geological Heritage Site as 'a key place with geological elements and/or processes o ...
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Ulmen Castle
Ulmen Castle is a ruined castle complex in Ulmen, Germany. The upper castle was built on a slope above the Ulmener Maar, while the lower castle was adjacent but below it. References

Castles in Germany {{Germany-castle-stub ...
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