Construction of this tajch (a historic mining reservoir) began in 1735 under the direction of Samuel Mikovíni.
It was completed in 1737 and cost more than 24,000 gold florins. The reservoir was fairly small, but it was the highest of the Piarg group of reservoirs.
It was of only minor economic importance and served mainly the needs of the Königsegg Shaft. Because of the remains of the reservoir, the spot where it stood is still called Tajšok today.
