Scheduled MonumentsWalesPenrhyn Quarry Railway
Industrial · Railway

Penrhyn Quarry Railway

Conwy, Wales
Cadw SAM CN417
Period
Industrial
Site type
Railway
Broad class
Water Supply and Drainage
Nation
Wales
Boundary

Scheduled area

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Overview

History & significance

Penrhyn Quarry Railway is a narrow-gauge railway constructed in the nineteenth century to serve the extensive slate quarrying operations at Penrhyn in Caernarfonshire, North Wales. The railway formed a vital part of the infrastructure supporting one of Britain's largest slate quarries, facilitating the transport of extracted slate from the quarry workings to processing areas and onwards to distribution points. The line represents a significant surviving example of industrial railway engineering associated with Welsh slate extraction, reflecting the technical sophistication required to manage the movement of heavy materials across challenging terrain. The railway remains a scheduled ancient monument, preserving evidence of the region's dominant nineteenth-century extractive industry and the specialized transport systems upon which it depended.

Penrhyn Quarry Railway is a scheduled monument protected by Cadw under reference CN417. View the official record →

About this monument

Questions & answers

What is Penrhyn Quarry Railway?

Penrhyn Quarry Railway is a narrow-gauge railway constructed in the nineteenth century to serve the extensive slate quarrying operations at Penrhyn in Caernarfonshire, North Wales. It is designated a Scheduled Ancient Monument by Cadw under reference CN417.

What period does Penrhyn Quarry Railway date from?

Penrhyn Quarry Railway dates from the industrial period, and is classified as a railway. It is one of over 32,000 scheduled monuments protected across Britain.

Who is responsible for protecting Penrhyn Quarry Railway?

Penrhyn Quarry Railway 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 CN417.

What other scheduled monuments are near Penrhyn Quarry Railway?

Several scheduled monuments lie within 10 km, including Carnedd Fach cairn (5.8 km), Dinorwic Quarry (6.3 km), Vivian Slate Quarry, Inclines, Walia & associated structures (6.4 km).

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