Brecon Beacons


Saith Maen NW is visually the most impressive of the Brecon Beacons stone rows.

A cluster of stone rows survive in and around the Brecon Beacons in South Wales. At least 14 stone rows and a single stone setting are currently known and most have survived to the present day. The character of the rows varies considerably, but all consist of at least three stones aligned along a common axis. The setting (Waun Leuci) is of particular interest because it is identical in appearance to the quincunx’s found across the Bristol Channel on Exmoor.  Further evidence for strong links between South Wales and South West England is provided by the alignment at Bancbryn, which has powerful visual links with the Devon coast and is very similar in character to several rows on Dartmoor. Various sources have been consulted to create the gazetteer entries and amongst these are: the Megalithic Portal; Coflein (RCAHMW); Archwilio (Welsh Archaeological Trusts) and Aubrey Burl’s book “From Carnac to Callanish”. The Gazetteer data forms the basis for many of the research articles.

Map showing the location of Brecon Beacons

Map showing location of Brecon Beacons


Map showing the distribution of Brecon Beacons stone rows (Google My Maps). Click on map to open an interactive version permitting direct access to the individual Gazetteer entries.

Brecon Beacons stone rows at a glimpse

No. of alignments 14
Number of single alignments 12
Number of double alignments 1
Number of triple alignments 1
Number of multiple alignments 0
Maximum length 717m
Minimum length 3.2m
Average length 117m
Longest alignment Bancbryn
Shortest alignment Nant Y Wern
Total number of recorded stones 277
Average number of stones in each alignment 20
Alignments including small stones 10
Alignments including medium stones 6
Alignments including large stones 7
Average orientation 27 °
Average altitude 394m
Highest alignment CraigY Fan Ddu  (500m)
Lowest alignment Trillech (139m)
Cairn at the top of alignment 2
Cairn at the bottom of alignment 0
Scheduled alignments 6

A summary of information for the individual stone rows can be viewed by clicking on the site names below. Further information and commentary will be added in the future.  Whilst it is believed that the existing information is accurate, mistakes inevitably occur and should you spot any your help in improving this resource would be much appreciated. Your help will of course be fully acknowledged. Please use the contact button to get in touch.

Stone Alignments

Stone Setting

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