This file contains the digital vector boundaries for Counties and Unitary Authorities, in England and Wales, as at December 2016. The boundaries available are: Full resolution - extent of the realm (usually this is the Mean Low Water mark but in some cases boundaries extend beyond this to include off shore islands); Full resolution - clipped to the coastline (Mean High Water mark); Generalised (20m) - clipped to the coastline (Mean High Water mark); Super generalised (200m) - clipped to the coastline (Mean High Water mark) and Ultra generalised (500m) - clipped to the coastline (Mean High Water mark). Contains both Ordnance Survey and ONS Intellectual Property Rights. Download File Sizes• Full resolution - extent of the realm (17 MB)• Full resolution - clipped to the coastline (22 MB)• Generalised (20m) - clipped to the coastline (3 MB)• Super generalised (200m) - clipped to the coastline (470 KB)• Ultra generalised (500m) - clipped to the coastline (168 KB).REST URL of ArcGIS for INSPIRE View Service – https://ons-inspire.esriuk.com/arcgis/rest/services/Administrative_Boundaries/County_Unitary_Authorities_December_2016_Boundaries/MapServer/exts/InspireView REST URL of ArcGIS for INSPIRE Feature Download Service – https://ons-inspire.esriuk.com/arcgis/rest/services/Administrative_Boundaries/County_Unitary_Authorities_December_2016_Boundaries/MapServer/exts/InspireFeatureDownloadREST URL of Feature Service – https://ons-inspire.esriuk.com/arcgis/rest/services/Administrative_Boundaries/County_Unitary_Authorities_December_2016_Boundaries/FeatureServer