Geological Survey of Finland

The facade of GTK's office in Otaniemi, Espoo
Photo: GTK's office in Otaniemi, Espoo. Founded 1885 Location Espoo, Kokkola, Loppi, Kuopio, Rovaniemi, Outokumpu Director General Kimmo Tiilikainen
A drill core archive in Loppi.

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.