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data Classification (with their legends) which have to be designed and produced on a
landscape and international basis, rather than by individual country on a national
basis. It is therefore an important requirement to come to international co-operation in
the matter of landscape Classification. For each of the classified landscapes a specific
topographic legend should be made, which should be applied on both sides of an
international boundary, where such a landscapetranscendssuchaboundary.Asthereis
already international co-operation in the production of medium and small scale
thematic maps and general topographic maps, it is now apparent that the need exists
for international co-operation in that field of mapping which directs its attention to
topographic landscape characteristics. Perhaps an I.C.A. Commission may see a task
laid away here for fruitful exploration.
Without international consultation, the diversity of topographic maps with a
'national tinge' will remain in existence. The difference in characteristics of these maps
can be graphically brought to expression. On the vertical axis the topographic ränge
K.N.A.G. Geograßsch Tijdschrift VI (1972) Nr. 3 273
Ta&seldeUer
MJX;
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jM^r, Sturmstoch;
III.
Topographical Map 1 25 000. Federal Republic of Germany, sheet 4808 Solingen (fig. 3 nr 14)
with a fairly wide topographic ränge for ground cover and orography; narrow ränge for built-up
areas.
