Dyfed Archaeological Trust Historic Environment
Record
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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.
