Ancient Monuments

History on the Ground

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Standing Stone & Round Barrow south east of Henriw

A Scheduled Monument in St. Harmon (Saint Harmon), Powys

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Latitude: 52.3863 / 52°23'10"N

Longitude: -3.5235 / 3°31'24"W

OS Eastings: 296408

OS Northings: 277570

OS Grid: SN964775

Mapcode National: GBR 9H.QZ00

Mapcode Global: VH5C9.W83Z

Entry Name: Standing Stone & Round Barrow SE of Henriw

Scheduled Date:

Source: Cadw

Source ID: 1931

Cadw Legacy ID: RD070

Schedule Class: Religious, Ritual and Funerary

Category: Round barrow

Period: Prehistoric

County: Powys

Community: St. Harmon (Saint Harmon)

Traditional County: Radnorshire


The monument comprises the remains of an earthen built round barrow and a standing stone, which probably date to the Bronze Age (c. 2300 - 800 BC). The barrow (item A) is circular in shape on plan and has a rounded profile. It is c.23m in diameter and survives c.1m high, despite being much reduced by cultivation. The standing stone (item B) stands c.85m to its north-north-west and is a fine pillar of shale, rectangular in plan, rising to a point. It measures 2.28m high by 1.06m on north-west and south-east faces by 0.61m. A second small stone was noted in the 1970s and 1980s lying c.0.9m to the north-east, which may have been a fragment broken off the stone; it is no longer in evidence. Early 20th-century sources claim that there was formerly a setting of four stones, two larger and two smaller, set in a rectangular pattern, similar to the Four Stones (Scheduled Ancient Monument RD004), in addition to the main stone.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. The features are an important relic of a prehistoric funerary and ritual landscape and retain significant archaeological potential. There is a strong probability of the presence of both intact ritual and burial deposits, together with environmental and structural evidence. Barrows and standing stones may be parts of a larger cluster of monuments and their importance can be 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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