Summary 
The State Power Board of Sweden has made extensive use of pho- 
togrammetric and geodetic procedures in the preparation of plans for 
the development of the water power resources in the north of this 
country. Aerial photographs have been used for almost all kind of 
mapping. The electronic instruments for distance measurement — the 
geodimeter and the tellurometer — have been introduced in order to 
make possible the establishment of ground control points as rapidly as 
required. Combinations of different methods within geodesy and photo- 
grammetry have been investigated and the synthesis of the experiences 
can be found in the work for the so called Nordkalott-project. 
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