Cof Cymru: National Historic Assets of Wales · Wales
Hermon or Dolfwynog Copper/Gold Bog Kiln
Ganllwyd, Gwynedd, Wales
A scheduled monument in Ganllwyd, Gwynedd, recorded as Kiln (Post Medieval/Modern).
The record
- Designation
- Scheduled monument
- Site type
- Kiln
- Period
- Post Medieval/Modern
- Date of designation
- 30 August 2001
- Community
- Ganllwyd
- Unitary authority
- Gwynedd
- Country
- Wales
- Coordinates (centre of the scheduled area)
- 52.81190, -3.87155
- SAM number
- ME198
- Cadw record number
- 1066
Slide toward Today to fade the historical sheet and see the modern map underneath.
David Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesBayerische Staatsbibliothek, MunichDavid 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)
- 1896 · Sheet 7. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
- 1899 · 135 Harlech (Hills) (David Rumsey Map Collection, Stanford Libraries)
- 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)
Cadw's description
Summary description and reason for designation
The following provides a general description of the Scheduled Monument.
The monument consists of an extraordinarily well-preserved example of a small kiln used to retrieve copper and gold which were found in peat and moss within the immediate area. The structure is of a rare type used in the eighteenth and early nineteenth centuries to exploit such sources of metals. It appears similar to a limekiln but with a more enclosed hearth and a lower and more irregular pot. The structure has been excavated and consolidated and the full furnace bowl can be seen, with a single blowing and tapping arch to the front, enclosed between wing walls. The structure has been built into the bank at the rear for ease of charging, and there are stone steps up to the level of the arch top.
The monument is of national importance as a rare survivor of peat-burning technology for refining copper and gold. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structure itself may be expected to contain archaeological information concerning chronology and building techniques.
The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.
Nearby in the register
- Cae'n-y-Coed FarmhouseDomesticunder 1 mi
- Attached earlier range stepped down to SWDomesticunder 1 mi
- Dol-Frwynog FarmhouseDomesticunder 1 mi
- FriogDomesticunder 1 mi
Other entries of the same register within about three miles of this one, by straight line.