The Mining water system from Špania Valley is one of the most important technical works in Slovak mining history. Surface water was transported along wooden raceways and underground channels to provide a valuable source of energy for water-driven machinery and equipment in the copper and silver mines in and around the Špania Valley. Built in stages, it was operational from the early 16th century until the 1900s. Water was collected from springs near Donovaly, then later the catchment area was extended back as far as Prašivá, also in the Low Tatra mountains. The main channels of the water system were 27 kilometres in length, but the whole water system, including the catching and transporting channels, measured more than 42 kilometres. The stamp depicts the Prašivá massif and also a reproduction of an early engraving of the Maximilián well in Špania Valley. The Roman Catholic church with wooden, covered stairway, a dominant feature in the valley, is depicted on the block gutter. The FDC has a copy of a 16th century engraving showing the washing and sorting of the mined ore. On the cancellation is a drawing of a water wheel from the old mine. Milan Žuffa Ellek