Romer Map Card GA


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Romer Map Card Geoscience Australia

These useful see-through map cards are great for reading bearings, distances and grid references on 1:100 000 and 1:250 000 scale maps. The romer can be purchased as part of the Map Reading Guide, or downloaded for reference.

A romer can be used for determining the last Easting and last Northing figures for a six-figure grid reference:

– Place the top right hand corner intersection of the romer lines over the point of interest.
– Read the numbers from this point to the left to give the final Easting figure, and down to give the final Northing figure.
– The number required is the last number read, before the grid line on the map crosses the romer.

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