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601 Magnetic north line

ISSprOM 2019-2
601 Magnetic north line (ISSprOM 2019-2)

Geometry: line.


Magnetic north lines are lines placed on the map pointing to magnetic north. Their spacing shall be 30 mm, they represent 120 m on the ground. North lines may be broken where they obscure small features such as boulders, knolls, cliffs, stream junctions, path ends, etc.


Colour: black or blue.