The Geometric Centre of Slovenia (Slovenian: Geometrično središče Slovenije, GEOSS) is the geometric centre of the country. Its geographic coordinates are 46.1199°N 14.8153°W and its elevation is 644.842m.[1] It lies in the hamlet of Spodnja Slivna near Vače in the Municipality of Litija. Since 4July1982,[2] it has been marked with a memorial stone designed by the architect Marjan Božič, about 50m away from the given coordinates. A plaque reading Živimo in gospodarimo na svoji zemlji ('We live and prosper upon our land') was added on 14September1989.[2] In 2003, Slovenia adopted the Geometric Centre of Slovenia Act, which is a unique case in Europe.[3] [4]