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Great view of the quarry

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A deep cut is being dug here: the materials from the eruption of the Maria Laach volcano are being mined using open-cast mining methods; the mountain is already very hollow. From the path, the area is mostly so sealed off that no direct view is possible, but there are two places opposite where you can see.

A deep cut is being dug here: the materials from the eruption of the Maria Laach volcano are being mined using open-cast mining methods; the mountain is already very hollow. From the path, the area is mostly so sealed off that no direct view is possible, but there are two places opposite where you can see.

In the foam lava pit of Herchenberg GmbH, tuff and slag are mined that the former volcano spewed out about 500,000 and about 210,000 years ago.

Foam lava is a porous lava, also known as lava gravel or lava scoria. In Germany it is only mined in the Eifel. Larger European deposits of lava gravel are located in the Auvergne in France.

It looks quite impressive when you look down into the crater from above.

Nice and cozy place to rest