Labelled map of Royal Mail postcode districts of the BT postcode area.
Indicative postcode district labels shown in red, post town labels shown in grey.
Equirectangular projection with latitude stretching 170%, WGS84 datum.
Geographic limits:

Main 1:709,000 map:
West: 8.253W
East: 5.363W
North: 55.349N
South: 53.989N
National borders and coastline data derived from File:United Kingdom location map.svg.
Richardguk