Rantasalmi is a municipality of Finland. It is located in the Southern Savonia region, 43 kilometres northwest of Savonlinna and 92 kilometres northeast of Mikkeli. The municipality has a population of 3,329 and covers an area of 925.20 square kilometres of which 366.61 km2
is water. The population density is 5.95 inhabitants per square kilometre.
Neighbouring municipalities are Joroinen, Juva, Savonlinna, Sulkava and Varkaus.
Wikipedia https://en.wikipedia.org/wiki/Rantasalmi
Official Website http://www.rantasalmi.fi/
Coordinates 62°3'49.33" N 28°18'16.227" E