Identification

Title
Historic County Boundaries of Wales
Abstract

A county is a sub-national division of a country introduced by the Normans although a similar Anglo-Saxon administrative system of 'Shires' was in existence earlier. Counties where usually overseen by a sheriff (Shire Reeve) who was appointed by the crown to collect taxes, raise militia and keep the peace though the administration of law. The implementation of the county system in Wales took place over many years.

In 1284 the Statute of Rhuddlan created six sheriffdoms or 'Shires' in Wales; Anglesey, Caernarfon, Merioneth, Flint, Carmarthen and Cardigan known as the Principality of Wales. The remainder of Wales consisted of the two Royal Lordships of Glamorgan and Pembroke and various Marcher Lordships which often made use of the earlier Commote and Cantref boundaries. The Marcher Lordships were abolished by the Laws in Wales Acts (1535) and the five new counties of Denbighshire, Monmouthshire, Brecknockshire, Radnorshire and Montgomeryshire were created to replace them. This created a total of thirteen historical counties in Wales. Some townships usually considered a part of Wales were assigned to Shropshire and Herefordshire and some minor changes to the boundaries were made in the Laws in Wales Act (1542). The thirteen historic counties remained in use until the Local Government Act 1972, the implementation of which in 1974 saw the abolishment of the historic counties and the creation of eight new administrative counties, Clwyd, Dyfed, Gwent, Gwynedd, Mid Glamorgan, South Glamorgan, West Glamorgan and Powys. These were themselves replaced in 1996 by the creation of twenty-two Unitary Authorities (or 'Principal Areas') which are still in use today. 

The mapping of historical boundaries requires many sources to be consulted. The most important has been the large scale first edition Ordnance Survey County Series mapping. The first edition six-inch to the Mile (1:10,560) scale mapping has been digitised by the National Library of Scotland (NLS) and this has provided a reliable source to map the boundaries from. As the project progresses, larger-scale sources such as the 25-inch (1:2,500) scale Ordnance Survey mapping will be used to refine the boundaries. Earlier cartographic sources will also be consulted such as Enclosure and Estate mapping and the Welsh Tithe Maps digitised by the National Library of Wales. 

All of the digital boundary datasets have been made available for public use under the Open Government Licence for public sector information. This means that you are free to copy, publish, distribute and adapt the information. We ask that when using this information that you acknowledge where this information has come from using the following accreditation:
 
‘© Crown Copyright, Royal Commission on the Ancient and Historical Monuments of Wales  available under Open Government License 3.0’


Or


‘© Crown Copyright, RCAHMW available under Open Government License 3.0’ 

Licence
Open Government Licence for Public Sector Information (OGL)

Read more about this licence

Copyright:

None

Publication date
Type
Spatial data
Keywords
historic environment, Boundaries, Boundary
Category:
Boundaries

Legal land descriptions. Examples: political and administrative boundaries

Find more data in this category

Regions
Global, United Kingdom
Approved
Yes
Published
Yes
Featured
No
Group
Royal Commission on the Ancient and Historical Monuments

Information

Spatial extent
Projection system
EPSG:27700
Extension x0
169202.609375
Extension x1
355309.59375
Extension y0
164529.421875
Extension y1
395983.5625

Features

Edition
1
Purpose

<p>Historical boundaries are recorded on a variety of sources such as old maps and documents. This project aims to make the information recorded in th…

Temporal extent
Jan. 1, 1535, midnight - Jan. 1, 1974, midnight
Spatial Representation Type
Vector data is used to represent geographic data

Contact

Email
online.services@rcahmw.gov.uk
Organisation
Royal Commission on the Ancient and Historical Monuments

References

Link online
/layers/geonode:historic_counties_bng_rcahmw_ply
Metadata page
/layers/geonode:historic_counties_bng_rcahmw_ply/metadata_detail

GeoJSON
Historic County Boundaries of Wales.json
Excel
Historic County Boundaries of Wales.excel
CSV
Historic County Boundaries of Wales.csv
GML 3.1.1
Historic County Boundaries of Wales.gml
GML 2.0
Historic County Boundaries of Wales.gml
DXF
Historic County Boundaries of Wales.dxf
OGC Geopackage
Historic County Boundaries of Wales.gpkg
Zipped Shapefile
Historic County Boundaries of Wales.zip

OWS endpoints

WMS
WFS