Tags: Prime Minister.
Geir Hallgrímsson (16 December 1925 – 1 September 1990) was the 16th Prime Minister of Iceland for the Independence Party from 28 August 1974 to 1 September 1978. Geir was mayor of Reykjavík from 1959 to 1972. During his term as mayor he greatly expanded the city and improved the inner structure. Under his guidance the geothermal heating system was expanded to the whole city when previously it had only been available to a minority of the city.