Ancient Monuments

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Ironstone Quarries at Carreg Maen Taro

A Scheduled Monument in Llanfoist Fawr (Llan-ffwyst Fawr), Monmouthshire (Sir Fynwy)

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Latitude: 51.794 / 51°47'38"N

Longitude: -3.1056 / 3°6'20"W

OS Eastings: 323847

OS Northings: 211177

OS Grid: SO238111

Mapcode National: GBR F2.Y09Q

Mapcode Global: VH79C.451J

Entry Name: Ironstone Quarries at Carreg Maen Taro

Scheduled Date: 30 August 2001

Source: Cadw

Source ID: 3847

Cadw Legacy ID: MM295

Schedule Class: Industrial

Category: Quarry

Period: Post Medieval/Modern

County: Monmouthshire (Sir Fynwy)

Community: Llanfoist Fawr (Llan-ffwyst Fawr)

Traditional County: Monmouthshire


The monument comprises the remains of quarry workings dating from the industrial period and is relatively early within the extensive mineral extraction landscape of Blaenavon. It is shown on a map of 1880 as disused, but tramroad plates found within the area suggest that it was being worked again soon after. Iron ore was probably worked by 'patch working' under separate sub-leases from the Blaenavon company, and the mineral transported to the Ironworks by tramroad. The remains include quarry faces, hand tips, tramroad routes, and coal and iron ore levels. The extensive system of watercourses in the area, may have been used for scouring, and carrying water to reservoirs on the south-east side of the mountain. Two steam engines are believed to have operated within the area at SO 2384 1118 and 2394 1127. The remains also include Carreg Maen Taro, an important boundary marker indicating the extent of the Blaenavon partners' lease.

The monument is of national importance for its potential to enhance our knowledge of quarrying in the prehistoric/medieval/industrial period. The quarry may be expected to contain archaeological information in regard to chronology, mining techniques and functional detail. A quarry 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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