Ancient Monuments

History on the Ground

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Stepsau Duon

A Scheduled Monument in St. Bride's Major (Saint-y-Brid), Vale of Glamorgan (Bro Morgannwg)

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Latitude: 51.4695 / 51°28'10"N

Longitude: -3.5722 / 3°34'19"W

OS Eastings: 290894

OS Northings: 175675

OS Grid: SS908756

Mapcode National: GBR HD.LQ5X

Mapcode Global: VH5HR.1BDB

Entry Name: Stepsau Duon

Scheduled Date:

Source: Cadw

Source ID: 2255

Cadw Legacy ID: GM185

Schedule Class: Transport

Category: Stepping stones

Period: Medieval

County: Vale of Glamorgan (Bro Morgannwg)

Community: St. Bride's Major (Saint-y-Brid)

Traditional County: Glamorgan


The monument comprises of a number of stepping stones, which provide pedestrian access across the river. Probably dating to the medieval period, there are 16 evenly spaced stepping stones of blue lias limestone which cross the Afon Alun. They are situated just downstream (north-west) from a ford where the road crosses the river. They are roughly rectangular, c. 0.5-0.7m across and their upper surfaces are very worn.

The monument is of national importance for its potential to enhance our knowledge of early transport systems. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits.

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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