Heneb Historic Environment Record

The following information has been provided under the terms and conditions of access as detailed on Heneb’s website www.heneb.org.uk.  Copyright is reserved on all data supplied by the Heneb HER Charitable Trust. All output resulting from the use of the data must acknowledge the source as follows:-
Derived from information held by the Heneb HER Charitable Trust copyright.

The data below is intended to be used for information and research only and is not for use as part of a commercial project.  If you wish to use information derived from material held by the Heneb HER Charitable Trust for publication in printed or multimedia form or to compile resources for commercial use, prior permission must be obtained in writing. For further information or to arrange a visit to the HER please send an enquiry form or email her@heneb.org.uk.

Penmaenmelyn Mine; Coba Copper Mine Shaft

Primary Reference Number (PRN) : 99156
Trust : Dyfed
Community : St Davids and The Cathedral Close
Unitary authority : Pembrokeshire
NGR : SM7152623605
Site Type (preferred type first) : POST MEDIEVAL Mine Shaft
Status : Pembrokeshire Coast National Park

Summary :
Rock cut shaft approximately 2m x 2.5m, with open water at a depth of 9m; water is 1.2m deep in a sump at the bottom; intersected by an adit (see PRN 99159) at 7.7m on south side. Described as both an opencast and as a shaft by Hall in 1971 (page 1); the latter description is the correct one. Davies (1955 -40-41) states that the adit intersected both shafts however inspection underground contradicts this.; there is a solid rock barrier between the two shafts at the horizontal of the adit. See PRN 5502 for further details.

Description :
Rock cut shaft 6ft x 8ft approx, open water at 30ft depth; water is 4ft deep to infill/sump bottom; intersected by an adit (see PRN 99159) at 25ft on south side. Described as both an opencast and as a shaft by Hall in 1971 (page 1); the latter description is the correct one. Davies (1955 -40-41) states that the adit intersected both shafts however inspection underground contradicts this.; there is a solid rock barrier between the two shafts at the horizontal of the adit.
See PRN 5502 for further references. K Murphy based on Protheroe Jones 2010.

Sources :
Pritchard, H , 2013 , 105547 A0029530 UID 300,057 HEF REPORT

Events :

Related records
5502

Compiled date : 29-03-2010


HTML file produced from Heneb HER Charitable Trust Ltd. Corner House, 6 Camarthen Street, Llandeilo, Carmarthenshire, SA19 6AE. Tel. 01558 823121; website: www.heneb.org.uk   email: her@heneb.org.uk. Registered Charity no. 504616. Data supplied by in partnership with Local Authorities, Cadw and the partners of ENDEX © Heneb HER Charitable Trust, 2025 (and in part © Crown, 2025).

February 7, 2026, 3:37 pm

  Do you have information to add to the record? Contribute here! Heneb HER Information Submission Form