This file contains the digital population weighted centroids for Middle layer Super Output Areas for England and Wales as at 31 December 2001. The centroids were created using Full Resolution, Extent of the Realm boundaries. Contains both Ordnance Survey and ONS Intellectual Property Rights. REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/MSOA__Dec_2001_Population_Weighted_Centroids_in_England_and_Wales/FeatureServer REST URL of WFS Server – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/MSOA_Dec_2001_Population_Weighted_Centroids_in_England_and_Wales/WFSServer?service=wfs&request=getcapabilities REST URL of MapServer – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/MSOA_(Dec_2001)_Population_Weighted_Centroids_in_England_and_Wales/MapServer