Scheduled MonumentsWalesHafna Lead Mine Mill
Post Medieval/Modern · Lead Mine

Hafna Lead Mine Mill

Conwy, Wales
Cadw SAM CN326
Period
Post Medieval/Modern
Site type
Lead Mine
Broad class
Industrial
Nation
Wales
The designation
Reference
Cadw SAM CN326
Authority
Cadw
Designated
2001-08-31
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Hafna Lead Mine Mill is a post-medieval and modern lead mine situated in Wales. The site was worked to extract lead ore from bedrock comprising Caradoc Rocks of Caradocian age, a sequence of mudstone, siltstone and sandstone that provided the geological framework for mineral deposition in this region. The mill structures represent the industrial processing infrastructure essential to lead mining operations, where ore extracted from underground workings would have been dressed and prepared for smelting or market.

The site reflects centuries of mineral exploitation across Wales, where lead mining formed a significant part of the rural industrial economy. The Caradocian succession, though primarily sedimentary, hosted valuable metalliferous deposits that drew investment and labour to remote upland areas. Evidence of associated workings, settling tanks and mineral waste typically survives at such sites, documenting both the technical demands and environmental impact of the industry.

Hafna Lead Mine Mill is protected as an ancient monument by Cadw under reference CN326, recognising its importance as a record of Wales's extractive industrial heritage and post-medieval economic history.

Hafna Lead Mine Mill is a scheduled monument protected by Cadw under reference CN326. View the official record →

About this monument

Questions & answers

What is Hafna Lead Mine Mill?

Hafna Lead Mine Mill is a post-medieval and modern lead mine situated in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference CN326.

What period does Hafna Lead Mine Mill date from?

Hafna Lead Mine Mill dates from the post medieval/modern period, and is classified as a lead mine. It is one of over 32,000 scheduled monuments protected across the UK.

Who is responsible for protecting Hafna Lead Mine Mill?

Hafna Lead Mine 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 CN326.

What other scheduled monuments are near Hafna Lead Mine Mill?

Several scheduled monuments lie within 10 km, including Pont y Pair (3.6 km), Hafodlas Slate Quarry Mills and Associated Features (3.9 km), Afon Ystymiau, cairns to N of (6.8 km).

Unlimited access

Everything a full report reveals about Hafna Lead Mine Mill

This page is just one thread. A full Aubrey report pulls together 13 strands of Hafna Lead Mine Mill's history, each drawn from the record and mapped to the exact spot:

Overview
An interactive map of the location with every monument and battle plotted, and a plain-language history built only from what the record holds.
Monuments
The legally protected scheduled monuments around the location, each with its period, type and significance.
Battlefields
The battles and sieges fought on this ground, mapped and set on a timeline of the wider conflict.
Roman Britain
The Roman roads, forts and towns near here, and the Iron Age people who held the land before Rome arrived.
Civil War
The Civil War fighting, garrisons and recorded militaria in this area, woven into the arc of 1642 to 1651.
Geology
The bedrock beneath the site, its age and rock type, reaching back hundreds of millions of years.
Local Names
What the street and field names around here actually mean, and the history buried inside them.
Historical Maps
Ordnance Survey maps from the 1800s, layered over the location as it stands today.
Literature
The books, county histories, charters and archives that mention this place, quoted with their sources.
Legal
The protected sites nearby and the metal-detecting, access and treasure laws that apply to this ground.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Target Zones
For detectorists: the most promising ground to search nearby, ranked by confidence, with what to expect.
Timeline
The whole story of the location told era by era, from prehistory to the present day.
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The ground beneath

The bedrock under Hafna Lead Mine Mill

Hafna Lead Mine Mill stands on Caradoc Rocks (Undifferentiated), bedrock that formed in the Caradocian. The rock here is mudstone, siltstone and sandstone.

The wider landscape

Around Hafna Lead Mine Mill

Bryn Celli DduArchaeological site · ~18 miles