Ancient Monuments

History on the Ground

This site is entirely user-supported. See how you can help.

Abercrave Ironworks

A Scheduled Monument in Ystradgynlais, Powys

We don't have any photos of this monument yet. Why don't you be the first to send us one?

Upload Photo »

Approximate Location Map
Large Map »

If Google Street View is available, the image is from the best available vantage point looking, if possible, towards the location of the monument. Where it is not available, the satellite view is shown instead.


Latitude: 51.7995 / 51°47'58"N

Longitude: -3.7272 / 3°43'37"W

OS Eastings: 280993

OS Northings: 212612

OS Grid: SN809126

Mapcode National: GBR Y7.XVGG

Mapcode Global: VH5G3.B1XC

Entry Name: Abercrave Ironworks

Scheduled Date: 23 October 1995

Source: Cadw

Source ID: 1409

Cadw Legacy ID: BR222

Schedule Class: Industrial

Category: Industrial monument

Period: Post Medieval/Modern

County: Powys

Community: Ystradgynlais

Built-Up Area: Abercrave

Traditional County: Brecknockshire


The monument comprises the remains of several buildings, including a blast furnace, coke oven and leat and an open excavated area related to the production of iron. Abercrave Ironworks was the first works built specifically to smelt iron using anthracite fuel and was opened in 1824 by Daniel Harper. The use of anthracite in iron smelting was only achieved in 1837, with the work of David Thomas at nearby Ynyscedwyn and the Abercrave Ironworks proved a failure, closing in 1829. It operated again between 1855 and 1861, but was unused subsequently. The ironworks was situated next to the terminus of the Swansea Canal and tramroad to Cribarth quarries. A diversion from the canal's feeder supplied a waterwheel powering the works, measuring 10.6m in diameter. The remains include the stone revetment of a charging area, plateway, leat leading to the stone wheelpit, circular furnace base, two large bears of solidified iron and the tramroad embankment.

The monument is of national importance for its potential to enhance and illustrate our knowledge and understanding of the development of the iron industry. An ironworks may be part of a larger industrial complex 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

Other nearby scheduled monuments is an independent online resource and is not associated with any government department. All government data published here is used under licence. Please do not contact for any queries related to any individual ancient or schedued monument, planning permission related to scheduled monuments or the scheduling process itself. is a Good Stuff website.