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Caverns Found and Explored During Construction of Road Tunnels in Istria and the Gorski Kotar Region

Caverns discovered during the construction of road tunnels in the area of Istria (along the A-8 motorway) and Gorski Kotar (along the A-6 motorway) belong to the Adriatic Sea hydrological basin. However, some caverns in the interior of Gorski Kotar belong to the Black Sea Basin as well. Examples of caverns belonging to the Adriatic Sea Basin can be found in the tunnels “Učka”, “Hrasten”, “Tuhobić”, “Vrata” and “Sljeme". Caverns belonging to the Black Sea hydrological basin were discovered in tunnels such as “Sopač”, “Lučice”, “Vršek”, “Veliki Gložac” and “Čardak”.

Speleology ; Highway Construction and Karst ; Dinaric Karst ; Cave Exploration in Croatia ; Karst Hydrogeology ; Caves ; Caving ; Tunnels ; Croatia ;

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