Hiking Highlight
Slag ejection from the eruption of the Laacher See volcano.
March 22, 2019
Along the trass walls, you can see the impressive rooting of the deciduous trees. The Romans and later the Dutch dug trass out of the walls to make mortar, which was mixed with water and lime to make mortar. The Dutch used gluing to build dams and harbors.
January 6, 2023
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