Rozgrund or Štiavnický tajch
RIver-basin: HronIt is the second largest ’tajch’ of the whole system of water reservoirs for the amount of water held. The resevoir started to be built in 1743. From the beginning of the 20th century it was used as a fresh water reservoir whichresulted in the fact it is the best maintained reservoir out of all the reservoirs in the Štiavnické Hills. Its volume is 960,000m3.