Scheduled MonumentsWalesLeat & Dam at Llanmihangel Mill
Post Medieval/Modern · Leat

Leat & Dam at Llanmihangel Mill

Wales
Cadw SAM GM449
Period
Post Medieval/Modern
Site type
Leat
Broad class
Water Supply and Drainage
Nation
Wales
Boundary

Scheduled area

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Overview

History & significance

Leat & Dam at Llanmihangel Mill is a post-medieval water management structure located in Wales, designated as a Scheduled Ancient Monument under Cadw reference GM449. The leat and dam represent the engineering infrastructure developed to supply water power to the mill, reflecting the industrial importance of water-driven milling in the post-medieval and modern periods. Such structures were essential to the operation of mills across Wales, channelling water from higher ground to create the hydraulic head necessary to turn mill wheels. The surviving physical remains demonstrate the practical application of medieval and early modern water engineering principles adapted for sustained commercial use through the post-medieval era.

Leat & Dam at Llanmihangel Mill is a scheduled monument protected by Cadw under reference GM449. View the official record →

About this monument

Questions & answers

What is Leat & Dam at Llanmihangel Mill?

Leat & Dam at Llanmihangel Mill is a post-medieval water management structure located in Wales, designated as a Scheduled Ancient Monument under Cadw reference GM449. It is designated a Scheduled Ancient Monument by Cadw under reference GM449.

What period does Leat & Dam at Llanmihangel Mill date from?

Leat & Dam at Llanmihangel Mill dates from the post medieval/modern period, and is classified as a leat. It is one of over 32,000 scheduled monuments protected across the UK.

Who is responsible for protecting Leat & Dam at Llanmihangel Mill?

Leat & Dam at Llanmihangel Mill is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is GM449.

What other scheduled monuments are near Leat & Dam at Llanmihangel Mill?

Several scheduled monuments lie within 10 km, including Mynydd Herbert Round Barrow (4 km), Nottage Court Inscribed Stone (4.3 km), Dan-y-Graig Roman villa (4.8 km).

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