Ancient Monuments

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Gadlys Ironworks (Remains of Blast Furnace)

A Scheduled Monument in Aberdare (Aberdâr), Rhondda, Cynon, Taff (Rhondda Cynon Taf)

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Latitude: 51.7167 / 51°43'0"N

Longitude: -3.4487 / 3°26'55"W

OS Eastings: 300018

OS Northings: 202990

OS Grid: SO000029

Mapcode National: GBR HK.357Y

Mapcode Global: VH6D3.53PT

Entry Name: Gadlys Ironworks (Remains of Blast Furnace)

Scheduled Date: 30 August 1989

Source: Cadw

Source ID: 2912

Cadw Legacy ID: GM438

Schedule Class: Industrial

Category: Ironworks

Period: Post Medieval/Modern

County: Rhondda, Cynon, Taff (Rhondda Cynon Taf)

Community: Aberdare (Aberdâr)

Built-Up Area: Aberdare

Traditional County: Glamorgan


The monument consists of the remains of a blast furnace of the Gadlys Ironworks. Built by Wayne and Company in 1827-8, one furnace was in blast. Two further furnaces were added in 1855-56. The furnaces were blown out in 1875 in the great iron industry depression of the early 1870s. The neighbouring blast engine house and cast house are Listed Buildings.

The monument is of national importance for its potential to enhance and illustrate our knowledge and understanding of the development of the iron industry in Wales. It retains significant archaeological potential, with the strong possibility of the presence of associated archaeological features and deposits. A blast furnace 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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