compiled at Geological Surveys of Finland, Norway and Sweden ; this map is a result of Nordic collaboration supported by the Nordic Council of Ministers ; this map is a result of the Nordkalott Project, a joint venture (1980-1986)Nordkalott Project1986
compiled at the Geological Surveys of Sweden, Norway, Finland and Greenland ; this map is the result of Nordic collaboration supported by the Nordic Council of Ministers ; this map is a result of the Nordkalott Project, a joint venture (1980-1986)Nordkalott Project1986