Great Western Railway > Monmouthshire and Brecon Canals (Canal Numbers 95 and 95A) > Water supply to the canal
Ordnance Survey map with sluices and weir highlighted in Brecon
Endorsed in ink "Land liable to Flood." Ordnance Survey reference: Brecknockshire sheet XXVII.12.25.
[late 19th-early 20th century]