OS 1:250k Colour Raster information

Features & Benefits
High-resolution raster backdrop map data shows:
  • all cities, towns and many villages, as well as features in the Ordnance Survey Road Map series, including all motorways, A and B roads and topographic features
  • uncluttered and clean mapping
  • full Great Britain coverage
  • familiar Ordnance Survey style raster cartography

As one of a range of backdrop map services, Ordnance Survey's 1:250 000 Scale Colour Raster map base combines roads, railways and other key features to make this the ideal cartographic backdrop for overlaying business information. This small-scale product gives an excellent overview of Great Britain.

OS 1:250 000 Colour Raster is fully compatible with other Ordnance Survey digital data products and other GB map services and data supplied by Esri UK.

Central Government, Defence, Education, Insurance, Local Government, Public Safety, Utilities, Private sector

Background mapping

Data Type
Cached map service

Great Britain

Data Scale
The nominal scale is 1:250 000, Map service is cached at the following levels:

Cache Scales
1:10,000,000 - Strategi
1:5,000,000 - Strategi
1:2,500,000 - Strategi
1:1,000,000 - Strategi
1:500,000 - Strategi
1:250,000 - OS 1:250k Colour Raster
1:100,000 - OS 1:250k Colour Raster
1:75,000 - OS 1:250k Colour Raster
1:50,000 - OS 1:250k Colour Raster
1:25,000 - OS 1:250k Colour Raster
The Ordnance Survey recommended minimum to maximum scale range for viewing is 1:70 000 to 1:250 000 Scale. It is best viewed at 1:72 224 Scale.

Update Frequency

Coordinate Reference System
British National Grid (OSGB36)