Gazetteer and Bibliography of the
Mines and Quarries of North Wales


This web site provides an on-line searchable version of the late Jeremy Wilkinson’s Gazetteer and Bibliography of the Mines and Quarries of North Wales. The gazetteer currently contains entries for more than 4,700 documented mine, quarry and other site names plus entries for around 2,000 other sites (unnamed levels, pits, quarries, shafts etc.) identified from historic maps. Alternative names of sites are cross-referenced. Supporting this data is a bibliography of more than 35,000 references and notes. Details are provided of more than 830 limited companies and more than 3,500 other companies and individuals are named.

The Gazetteer and Bibliography was originally compiled over a considerable number of years by Jeremy Wilkinson from Public Record Office and other sources of public record. He used the data and a set of BASIC programs to create a database, initially on a BBC B computer and later on PCs.

Jeremy provided copies of his files to me, Dave Linton. I have modified file names, formats and some data codings to simplify maintenance and reduce file sizes. Duplicated data have been eliminated and minor corrections have been made. The files and their data formats have been documented to support future maintenance.

I have used my versions of Jeremy’s files and my own programs to produce an on-line search facility of all mines and quarries, persons associated with the mines and quarries, and a list of relevant Crown Grants. Cross-references that provide additional information are linked.

In addition, references to further secondary sources have been added as in some cases these are more accessible than the primary sources.

Additions and corrections to the data have been, and will continue to be, incorporated as further information becomes available. Submissions of such information will be welcomed.

The Gazetteer and Bibliography

The Gazetteer and Bibliography consists of an entry for each mine and quarry in the pre-1974 counties of Angelsey, Caernarfonshire, Denbighshire, Flintshire and Merioneth of north Wales. Each entry has, where available, the following information:

Searches can be made by site name, product, county, parish, location (name, grid reference or postcode) or any combination of these.

The results can be displayed as a list of site names, full gazetteer details or as locations (where known) on a map.

See example entry or search the Gazetteer

Jeremy recorded more than 1,300 sites that appeared on maps but were otherwise unreferenced by giving them the name of a nearby map feature. Thus, an isolated level, marked as Old Level on the map, with no documented history, might be recorded with a name such as “CERIG HEUNON MINE”. As time permits, such names are being changed to the type of feature recorded on the map – in the case of the example given, the site would be shown as “LEVEL”.

Crown Grants

There is also a list of Crown Grants with, again where available, the following information:

See example entry or search the Crown Grants

List of Persons, Companies and Organisations

Finally, there is an alphabetical list of persons, companies and organisations who were associated with the mines and quarries or who were Crown Grantees. It contains the following information:

See example entry or search the persons, companies and organisations

Changes and updates

A list of significant changes made made to the information in these files can be found in the change log (last updated 16 August 2019).


The Mines and Quarries of North Wales data and search results are Copyright © Jeremy Wilkinson 2004. Web design, additions and corrections to data and all code is Copyright © David Linton 2017.

The gazetter incorporates data from the GB1900 Gazetteer (the Great Britain Historical GIS Project at the University of Portsmouth, the GB1900 partners and volunteers) made available under a Creative Commons Attribution Share Alike Licence and its use is hereby acknowleged.

You may:

Copyright in external sources of information linked to by the Gazetteer or incorporated in it remains with those sources and is not covered by the above permissions.


Jeremy Wilkinson’s work in researching and collecting this data was considerable, and the mining history community owes him a signifcant debt. (This may be noted by the number of times his contribution is acknowledged in various mining, quarrying and railway history books.) In addition, the suggestion that the information be made public on the World Wide Web came from him. As well as his data files mentioned above, Jeremy also passed on to me his index cards, various notes and correspondence, photocopies of HM Mines Inspectors’ reports and his collection of OS six-inch county maps on microfilm.

Christopher Fleet of the National Library of Scotland has provided assistance in enabling me to provide on-line access to the OS six-inch map sheets referenced by the data. The on-line map images hosted by NLS are a major resource and add considerably to the utility of this gazetteer and bibliography.

Gary Duckers of Clwyd-Powys Archaeological Trust for resolving an issue with the Clwyd-Powys Metal Mines Survey web pages.

Code used for conversions between GB OS grid and latitude/logitude and their supporting subroutines is directly derived from Toby Thurston's Perl cpan package Copyright © Toby Thurston ( 2002–2013.

The University of Portsmouth, the GB1900 partners and volunteers for compiling and making available data from the GB1900 Gazetteer (Great Britain Historical GIS) Project.

I would also like to thank everyone who has helped with this project in any way by acting as test users on their own computers and/or providing suggestions for improvements.

Contact information

Submissions of new information, corrections, technical queries and queries about copyright and terms and conditions of use should be made to Dave Linton,, telephone 01341 280901