ABSTRACT: In the area of the Revúcke Podolie depression (north of the Central Slovakia), Ol) the western edge of the Veľká Fatra Mts. and the eastern rim of the Nízke Tatry Mts., in the tectonically strongly affected belt of the Revúca fault zone several large springs of karst-fissure groundwater occur. In the area between Liptovská Osada and Ružomberok - Biely Potok villages springs Jazierce, Bukovina and Matejková are the most important. These springs are partly exploited as standard drinking water sources (Bukovina and Jazierce springs), and also for fish farming (Matejková spring). All the aforementioned springs are concentrated groundwater outflows of higher discharges (30 - 120 l.s-l) and upraised groundwater temperature as well. Groundwater temperatures, discharges, chemical and isotope composition are quite stable in all these springs, as shown by more than IO-years long history of observations of oxygen, hydrogen isotopes in water and sulphur isotopes in dissolved sulphates. Nevertheless, recharge areas of these springs are not well defined yet.