Between May 1992 and August 1993, CPAT carried out a rapid survey of all of the non-ferrous metal mines (predominantly lead), phosphate mines and some of the more significant locatable trials, in Powys. The purpose of this work was to assess their present state of preservation, with a view to promoting better management and conservation of remains both above and below the ground, and to enhance CPAT’s Regional Sites and Monuments Record. The survey entailed a rapid field appraisal of the surviving remains and an examination of documentary evidence gleaned from maps, mine plans, leases and prospectuses (held in the National Library of Wales, Aberystwyth and County Record Offices). This was accompanied by limited aerial photographic survey (carried out by Chris Musson formerly of the Royal Commission on Ancient and Historical Monuments of Wales – RCAHMW) and followed up by EDM ground survey of selected sites. Financial assistance for the initial survey was provided by Powys County Council, with additional support for the later stages coming from Cadw and RCAHMW.
