Ancient Monuments

History on the Ground

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

Pen y Groes Uchaf Cairn

A Scheduled Monument in Tregynon, Powys

Approximate Location Map
Large Map »
Street or Overhead View
Contributor Photos »

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: 52.5743 / 52°34'27"N

Longitude: -3.43 / 3°25'47"W

OS Eastings: 303190

OS Northings: 298352

OS Grid: SO031983

Mapcode National: GBR 9M.BXWV

Mapcode Global: WH79Y.8KY9

Entry Name: Pen y Groes Uchaf Cairn

Scheduled Date: 23 November 2000

Source: Cadw

Source ID: 1688

Cadw Legacy ID: MG261

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Powys

Community: Tregynon

Traditional County: Montgomeryshire


The monument comprises the remains a burial cairn, probably dating to the Bronze Age (c. 2300 - 800 BC) and is located on the Mynydd Bwlch-y-gors ridge.The cairn is constructed of small to medium sized stones, now mostly grassed over and measures 18m in diameter and stands to over 1m in height. A central hollow is testimony to the past removal of some of the cairn stones but the bulk of the structure remains unaffected.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. The monument is an important relic of a prehistoric funerary and ritual landscape and retains significant archaeological potential, with a strong probability of the presence of both intact burial or ritual deposits, together with environmental and structural evidence. Cairns may be part of a larger cluster of 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. It is a circle and measures 25m in diameter, centred on the cairn.

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.