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Production of maps 
The main product in photogrammetric mapping by the National 
Board of Survey is the basic map. The scale of the stereoplot- 
ting of photomosaic is 1:10 000, The map is being drawn at 
1:10 000 and printed at 1:20 000, In the very near future the 
whole country will be covered and the work will only continue 
as renewing of this map. In the most northern part of Finland 
(Lapland) the basic map is compiled by the Topographic Service 
of the Defense Forces directly at the scale 1:20 000, The out- 
put of the base has been more than 10 000 square kilometers a 
year e 
Ihe National Board of Public Roads and Waterways is stereoplot- 
ting large scale maps for its own use not quite 1000 km“ a year, 
T:he. Seo logical sSurvev.of£..F Lan Lan d is 
using photomosaics as a basis for the geological mapping. 
Private engineering offices are stereoplotting maps at large 
scales for local authorities and industrial employers, The out- 
put of the photogrammetric 1:500 map by these companies is about 
100 km“ a year, The production of the 1:2000 map is correspond- 
ingly about 500 km“ a year and of smaller scales about 300 km” 
per year. 
T hgeuNlantal oonnoacl B o asríidi o f ~Froorieis tir y: makes 
photomosaics at the scale 1:20 000 for its own use, e.g. about 
800 km“ in:1971. 
The Finnmap company has produced orthophotomaps for nearly 
1000 km“ yearly, This company was as before during the report 
period the biggest in foreign mapping. In 1971 the company 
founded together with Soil and Water Ltd the work- 
partnership Finnmap-Soilwater for mapping of developing countries 
and got the first big order in this line. 
Non -topographic photogrammetry 
The special photogrammetry for non-topographic purposes has ra- 
pidly increased in significance, There are some problems which