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Mining in upper Me\vza valley had more than 350 years of tradition. Lead and zinc ore deposit was developed in the triassic carbonate layers on the area of 64 km2. Until 1994, when the mining process was stopped, miners excavated about 19 million tons of lead and zinc ore and over 1000 km of galleries and pits. A crucial aspect of the Me\vzica mine was the dewatering issue. Me\vzica ore deposit is developed in Triassic carbonate rocks – limestone and dolomite. The area is of rough mountainous relief rising from ...