Cave Systems & Karst Geology — Czech Republic
Records of the karst zones, cave systems and underground formations that extend under Czech limestone country — from the Macocha Gorge to the longest mapped passages of the Amaterska system.
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Karst Landscape
The Moravian Karst protected landscape area stretches across 94 square kilometres of deeply eroded limestone terrain. At its centre stands the Macocha Gorge, a 138.5-metre collapsed doline that feeds the Punkva River underground. Six cave systems are open to the public, ranging from the boat tour inside Punkva Caves to the cathedral-like dome of Katerinska Cave.
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Geology
The Bohemian Karst, known locally as Cesky Kras, occupies the Berounka River valley southwest of Prague. Its Devonian and Silurian limestones host the largest cave system in Bohemia — the Koneprusy Caves — as well as the rock formation zone of Tetinska skala with its rich fossil record dating back 400 million years.
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Hydrology & Paleontology
At 35 kilometres of mapped passages, the Amaterska Cave is the longest cave system in Czech Republic and one of the most extensive in Central Europe. Its connection to the Punkva River forms a continuous underground hydrological network. The adjacent Byci Skala site yielded Bronze Age deposits and Pleistocene cave bear remains in the late 19th century.
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Czech limestone country spans two geologically distinct zones — the Moravian Karst north of Brno, and the Bohemian Karst west of Prague — separated by the Bohemian Massif and shaped over hundreds of millions of years.
Both regions formed in ancient marine sediments. The Moravian Karst rests on Middle Devonian limestones roughly 380 million years old. The Bohemian Karst contains even older Silurian and Devonian strata, with some outcrops exceeding 400 million years. Surface water percolating through fractures gradually dissolved the bedrock, forming the cave corridors, pits and underground river systems visible today.
The Czech Republic registers more than 1,100 catalogued cave cavities. Of these, six cave systems in the Moravian Karst and one in the Bohemian Karst are administered for public access by the Czech Cave Administration (caves.cz), which oversees visitor access, scientific research and conservation measures.
Beyond the two major karst zones, isolated limestone outcrops appear in Moravia near Zbrašov (with its CO₂-rich thermal caves) and in the Jeseniky highlands. Smaller karst windows also occur along the Dyje River valley in the Podyji National Park.
