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750-year-old silver ore crushing mill in the valley of Stříbrný potok near Havlíčkův Brod town

source: https://www.ceskenoviny.cz/index_img.php?id=543437

The Archaeologists from Brno city have uncovered a 750-year-old silver ore crushing  mill in the valley of Stříbrný potok near Havlíčkův Brod town. He speaks of a finding of pan-European significance, the same device has so far been documented only in France. But the mill near the town Havlíčkův Brod is in better condition. The discovery was made possible by rescue research, which is part of the construction of the south-eastern bypass of Havlíčkův Brod town. Jakub Těsnohlídek from Archaia Brno told ČTK.

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The locality is completely newly discovered, it is not mentioned in any written sources. The Archaeologists were guided by the large amount of metallurgical waste found in the area. The mill was hidden about two meters below the current terrain.

It was part of the finishing department of ore. When it was no longer possible to sort it manually, it was necessary to break it into smaller fragments. The stamping mill in the rises were used for this purpose. The crushed ore could then be sorted below the water surface, just as panning for gold in rivers works.

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From the mill with a floor plan of about five times eight meters, about two meters high stone masonry has been preserved, which probably still functions as its wooden superstructure, and an underground drainage gallery. The whole building stands in the waterlogged floodplain of the creek was founded deep into the subsoil down to the rock. Wooden elements have survived to the present day in places that were provided by water without permanent access to air.

Extraordinary finds include more than a meter large piece of mill wheel. The mill probably started to rotate after 1270. The whole was about four meters in diameter. In addition to wood, hemp ropes or leather decorated objects, including a knife sheath, have been preserved in a layer flooded with water.

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