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Cof Cymru: National Historic Assets of Wales · Wales

Klondyke Lead Mill

Trefriw, Conwy, Wales

A scheduled monument in Trefriw, Conwy, recorded as Lead Mine (Post Medieval/Modern).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Klondyke Lead Mill, Trefriw, 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
Scheduled monument
Site type
Lead Mine
Period
Post Medieval/Modern
Community
Trefriw
Unitary authority
Conwy
Country
Wales
Coordinates (centre of the scheduled area)
53.14229, -3.84796
SAM number
CN159
Cadw record number
3408

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 1588 map "Ortelius, Abraham: Theatro De La Tierra Universal. 0" (Bayerische Staatsbibliothek, Munich).

Historical maps covering this location

  • 1588 · Ortelius, Abraham: Theatro De La Tierra Universal. 0 (Bayerische Staatsbibliothek, Munich)
  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 106 Bangor (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 106 Bangor (Outline) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

NEfollowing provides a general description of the Scheduled Monument.

The Klondyke Lead Mill was built in 1900 by the Welsh Crown Spelter Company after they had become proprietors of the Pandora mine in 1899. The mill was originally called the Geirionydd Mill until 1908 when it was known as the New Pandora Lead works and subsequently as Klondyke Mill. It is a large, imposing stone building, now roofless.

The mill was connected by an aerial ropeway and tramway to the lead mine at New Pandora. A wooden platform supported between two stone walls adjoining the NE end of the mill received the aerial ropeway. Protruding out from the platform are two rails, which imply that entire trucks were carried down the ropeway from the upper platform on the hill opposite. The ore was then taken onto the top floor of the main mill building, from which it descended via various crushing and jigging machines. Some of the waste material was then further treated outside in circular buddles, in the large waste tip.

The water wheel was situated on the south side of the mill.

The other buildings on the site attached to the west and north side of the mill are also roofless, and some of the masonry is in a state of collapse. The locations of a store and office are also known.

The entrance to the level opposite the mill by the side of the river is still visible.

The bridge which crossed the river and served the main track to the NE has collapsed.

The monument is of national importance for its potential to enhance our knowledge of the lead industry. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structures themselves may be expected to contain archaeological information.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

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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