CONTENT
How did the Macocha Chasm originate?
The pseudokarst cave Hundskirche in Kummergebirge, Northern Bohemia
Ochoz Cave and Vilém's valley in the southern part of the Moravian Karst
Historical underground in Kladsko, Silezia
Artificial and pseudokarst cavities in Snowdonia
The Chrustenice Mine: history and at present
The report on exploration of historical underground spaces in Proseč at Pošná (Pelhřimov District)