§ Lord Rotherwick
asked Her Majesty's Government:
Whether Ordnance Survey maps will be published in future with contour lines marked in metre numbers; and, if so, whether all the contour lines will have to be redrawn. [HL2009]37WA
§ Lord Falconer of Thoroton
Contour lines, marked in metre numbers, appear on nearly all of Ordnance Survey's small-scale products with the one exception of mapping drawn at 1:250 000 scale which currently shows contour lines marked in imperial measurements in line with customer requirements.
There are plans to show contour lines marked in metric on 1:250 000 scale mapping at a later date.
I can confirm that this will not involve the redrawing of the contour lines.