The Megalopoli Mine is a large lignite and coal open-pit mine owned by the Public Power Corporation of Greece that began in the early-1970s after the completion of the Megalopoli Power Plant. It mined approximately 40 km² or 4,000 ha of which 25 to 30 km² or 2,500 to 3,000 ha of land have been mined. With a timespan of 37 years, it is the largest mine in the Peloponnese and southern Greece and is ranked near Amyntaio and after Ptolemaida.
