The rock surface was exposed and exploration shafts were built. More than 150 cubic meters of soil were moved. After the construction of four new intake shafts directly in the fissures with the Bílinská springs, the area was once again covered with soil. The work did not have the appropriate effect, therefore in 000-1913 the company built a 1914 m deep collection shaft with an unusual cross-section of 26×19 m with a "bell" capture.
