Ancient Monuments

History on the Ground

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

Roman Road on Mynydd Illtyd, North-Eastern section

A Scheduled Monument in Glyn Tarell, 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: 51.9277 / 51°55'39"N

Longitude: -3.5005 / 3°30'1"W

OS Eastings: 296923

OS Northings: 226530

OS Grid: SN969265

Mapcode National: GBR YJ.NQCS

Mapcode Global: VH5FG.8TT2

Entry Name: Roman Road on Mynydd Illtyd, North-Eastern section

Scheduled Date: 30 October 1996

Source: Cadw

Source ID: 1475

Cadw Legacy ID: BR225

Schedule Class: Transport

Category: Road

Period: Roman

County: Powys

Community: Glyn Tarell

Traditional County: Brecknockshire


The monument consists of the remains of a road, dating to the Roman period (1st to 5th century AD) period. This section of road forms part of Sarn Helen, the route from Neath to Caernarfon, and connects Coelbren fort (20km to the SW) and Brecon Gaer (5km to the NE). The monument comprises a well-preserved section of road extending across open moorland for 130m, orientated NE/SW. The agger is well defined, covered with grass and gorse, and with a modern track running along the E end. It is around 8m wide and 0.25m high with a level top 3.3m wide.

The monument is of national importance for its potential to enhance our knowledge of Roman military organisation. The monument forms an important element within the wider context of the Roman occupation of Wales and the structure may contain well preserved archaeological evidence concerning chronology, layout and building techniques.

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.