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Cof Cymru: National Historic Assets of Wales · Wales

Quarry Incline at Cwm Penmachno (upper part)

Bro Machno, Conwy, Wales

A Grade II listed building in Cwm Penmachno, Bro Machno, Conwy, designated on 17 July 1992.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Quarry Incline at Cwm Penmachno (upper part), Bro Machno, Conwy, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Listed building, Grade II
Broad class
Industrial
Date of designation
17 July 1992
Locality
Cwm Penmachno
Community
Bro Machno
Unitary authority
Conwy
Country
Wales
Coordinates
53.00431, -3.86262
Cadw reference
5878

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1795 map "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).

Historical maps covering this location

  • 1795 · To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most… (Llyfrgell Genedlaethol Cymru – The National Library of Wales)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1896 · Sheet 7. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 119 Snowdon (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Foot of incline approximately 450m to S of Glanaber Terrace. Reached via path beginning at SH 752 472.

Mid C19 incline for transport of slate from quarry terraces; part of disused Cwm Machno slate quarries.

Incline of 2 tracks and of the water balanced type, engineered across series of quarry terraces. Slate waste rubble incline with two parallel tracks. Tracks have surface of flat slabs. Built-up to a height of circa 5m from ground but varying according to terracing of quarry. Width circa 4m. Sides of incline have deep slate rubble buttresses which continue above trackway. Towards bottom of section is archway circa 2m high and wide; drystone slate rubble voussoirs. At top of incline is stepped platform with remains of former drumhouse; steps lead up to platform from ground level on W side.

Incline above former drumhouse platform continues in fragmentary form and is not of special interest.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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