Ancient Monuments

History on the Ground

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Pentreclwydau Colliery

A Scheduled Monument in Glynneath (Glyn-nedd), Neath Port Talbot (Castell-nedd Port Talbot)

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Latitude: 51.7329 / 51°43'58"N

Longitude: -3.669 / 3°40'8"W

OS Eastings: 284836

OS Northings: 205122

OS Grid: SN848051

Mapcode National: GBR H8.23TB

Mapcode Global: VH5GB.CP5W

Entry Name: Pentreclwydau Colliery

Scheduled Date: 12 February 2003

Source: Cadw

Source ID: 3974

Cadw Legacy ID: GM537

Schedule Class: Industrial

Category: Coal Mine

Period: Post Medieval/Modern

County: Neath Port Talbot (Castell-nedd Port Talbot)

Community: Glynneath (Glyn-nedd)

Traditional County: Glamorgan


The monument consists of a drift mine dating to the 20th century. The colliery was operated after Nationalisation, and continued in use until 1967. It produced high quality anthracite for the domestic market. The remains include haulage engine houses, drift entrances, railtracks, and a fan drift with concrete fanhouse and evasee. The colliery is constructed of reinforced concrete and brick, characteristic of post-War structures. The organised layout is unusual for a drift mine.

The monument is of national importance for its potential to enhance and illustrate our knowledge and understanding of the development of the coalmining industry in Wales. It retains significant archaeological potential, with the strong possibility of the presence of associated archaeological features and deposits. A coal mine may be part of a larger cluster of industrial monuments and their importance can further enhanced by their group value.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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