Powys Metal Mines Survey
lies in the community of Llanidloes Without in the county of Powys. It is located at Ordnance Survey national grid reference SN86558678.
The mine is recorded in the CPAT Historic Environment Record as number 8476 and this number should be quoted in all correspondence.
Copper (Prehistoric ?/19th century)
Ordovician grits and conglomerates of the Lower Van Formation with chalcopyrite and calcite veins striking ENE.
An adit at the rivers edge on the north side of the Severn, probably 19th century in date. SN86708676.
A deep narrow opencut on the south side associated with a small processing area and spoil tip close to the rivers edge. SN86658676.
A wide opencut north of the present forestry track at SN87158678.
O.T. Jones recorded a deep narrow opencut 200yds east of the main adit known as the 'Thieves Den' where a number of hammerstones are recorded on the spoil tips along with charcoal and burnt stone, presumably from firesetting. This site has not been
An inclined trackway connects the adit to the present forest road above.
There is some evidence of hand sorting and limited dressing close to the narrow opencut on the south side of the stream.
A rectangular building of unknown use is located downstream of the narrow opencut on the south side of the Severn SN86698678. Two internal divisions are visible and it appears to be drystone walled. This structure may be related to farming activity or it
may be a small mine office related to 19th century workings mentioned above.
This HTML page is reproduced from the Powys and Clwyd Metal Mine Surveys which were undertaken between May 1992 and December 1993 by Mark Walters and Pat Frost of the Clwyd Powys Archaeological Trust with financial support from Powys County Council, Clwyd County Council and Cadw: Welsh Historic Monuments. Further information about this site is available in CPAT's Regional Historic Environment Record.
Page produced by Rachel Stebbings and Chris Martin.