The municipality was previously called Kuusjärvi until 1968.
A deep hole was drilled near here between 2004 and 2005. The hole is 2,516 meters deep and its diameter is 22 cm. It was made for reseach purposes by the Russian company Nedra.
Kalaton, Kuusjärvi, Kokonvaara, Maljasalmi, Rikkaranta, Sysmä, Taipale, Varislahti, Viuruniemi, Ulla, Alavi, Harmaasalo, Törisevä, Vuonos, Kuminvaara, Sätös and Paloranta.
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