Only about 7,5 % of Sweden is arable land - the rest is forests, mountains, lakes and towns. The need for aerial archaeology has long been considered weak, though a couple of archaeologists made trial flights already in the 1930's. In spite of that, aerial archeology flights during the last years have revealed a number of sites in areas put under the plough. The most immediate need for aerial photography is the aerial 
documentation of areas which are close to great changes due to prevailing agricultural politics. In a country of about 450 000 km2 it is very difficult for one archaeologist to cover even parts of the arable land by aerial archaeological survey. The flights for archaeology, of cultural history, differ to a great extent from the circumstances in other countries. But in Sweden, as in other countries, flying is indispensable for archaeologists.