This file contains the digital vector boundaries for Senedd Cymru Constituencies, in Wales, as at May 2026. The boundaries available are: (BFC) Full resolution - clipped to the coastline (Mean High Water mark). Contains both Ordnance Survey and ONS Intellectual Property Rights. REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/SENC_MAY_2026_WA_BFC/FeatureServer REST URL of WFS Server – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/Senedd_Cymru_Constituencies_(May_2026)Boundaries_WA_BFC/WFSServer?request=getcapabilities&service=wfs REST URL of MapServer – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Senedd_Cymru_Constituencies(May_2026)_Boundaries_WA_BFC/MapServer