Scheduled MonumentsWalesDinorwic Quarry
Post Medieval/Modern · Slate Mill

Dinorwic Quarry

Conwy, Wales
Cadw SAM CN337
Period
Post Medieval/Modern
Site type
Slate Mill
Broad class
Industrial
Nation
Wales
Boundary

Scheduled area

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Overview

History & significance

Dinorwic Quarry is a post-medieval and modern slate extraction site located in Conwy, Wales, representing one of the principal industrial enterprises of North Wales during the nineteenth and twentieth centuries. The quarry was developed to exploit the extensive slate deposits of the Snowdonia region, becoming a major centre of slate production that supplied roofing material to markets across Britain and beyond. The site comprises extensive excavations, processing facilities, and associated infrastructure characteristic of large-scale slate quarrying operations of the period. Dinorwic Quarry stands as significant testimony to Wales' dominant role in global slate production during the industrial era and to the technological and labour systems that sustained this extractive industry.

Dinorwic Quarry is a scheduled monument protected by Cadw under reference CN337. View the official record →

About this monument

Questions & answers

What is Dinorwic Quarry?

Dinorwic Quarry is a post-medieval and modern slate extraction site located in Conwy, Wales, representing one of the principal industrial enterprises of North Wales during the nineteenth and twentieth centuries. It is designated a Scheduled Ancient Monument by Cadw under reference CN337.

What period does Dinorwic Quarry date from?

Dinorwic Quarry dates from the post medieval/modern period, and is classified as a slate mill. It is one of over 32,000 scheduled monuments protected across Britain.

Who is responsible for protecting Dinorwic Quarry?

Dinorwic Quarry 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 CN337.

What other scheduled monuments are near Dinorwic Quarry?

Several scheduled monuments lie within 10 km, including Castell Dolbadarn (1.4 km), Hut Circle Settlement and Rectangular Hut North of Hebron Station (2.1 km), Cwm Brwynog Deserted Rural Settlement (3.7 km).

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