Opukový lom u Přední Kopaniny, Natural monument in Přední Kopanina, Czech Republic.
The Opukový lom u Přední Kopaniny is a limestone quarry that exposes geological layers from the Cretaceous period, offering insights into ancient marine formations. The walls reveal distinct rock strata that represent sediments deposited millions of years ago in what was once a sea.
Quarrying at this site dates back to the 12th century, when workers extracted limestone for the local Rotunda of Saint Mary Magdalene. Later, the stone was also used during major restoration work at Saint Vitus Cathedral.
The site takes its name from the opukovy stone, a yellowish-reddish limestone extracted here that became a well-known building material in the region. Visitors can still see how this stone shaped local architecture and remains valued among sculptors.
The site lies near Prague and is accessible by car from the city via the R7 expressway, heading toward Tuchoměřice. Visitors should wear sturdy footwear and be prepared for rough or uneven surfaces typical of quarries.
The quarry contains a distinctive limestone layer roughly 80 to 120 centimeters thick, known locally as golden stone. Sculptors have long valued this rare variety for its unique coloring.
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