The Geological Survey of Finland (Finnish: Geologian tutkimuskeskus abbreviated GTK, Swedish: Geologiska forskningscentralen) is the geological survey of Finland.
The organization was founded in 1885 when Emperor Alexander III decreed that the Geological Survey of Finland (Suomen geologinen tutkimus) be established.
GTK is a research institution governed by the Finnish Ministry of Employment and the Economy, operating in Finland and globally.
[1] From 1929 to 1968 the Bulletin de la Commission géologique de Finlande appeared in a double edition together with the publication Comptes Rendus de la Société Géologique de Finlande of The Geological Society of Finland.
[2] The survey publishes also "special papers" and "reports of investigation".