External Links
                
                
                
                            
                    Publications (5)
                
                
                    
                                                                - (1922); BGS - Mineral Resources of GB (c1920s) Vol XX - Lead and Zinc: Cardiganshire & West Montogmeryshire; 242 pages
- (1988); WMS Newsletter Issue 18 May; 12 pages
- (1990); WMS Newsletter Issue 23 Dec; 8 pages
- Foster-Smith, J.R.; NMRS (1979); British Mining 12 - Mines of Cardiganshire, The; ISBN 0 901450 14 6; pp.34.
- Hughes, S.J.S.; NMRS (1990); British Mining 40 - Darren Mines, The; ISBN 0901450 36 7; pp.7,60.
                            
                
                
                        
            
                
                
                
            
                            
                
                
                    
                    
                    
                        
                                                             Gwaith yr Afon - 1,058m Gwaith yr Afon - 1,058m
 Cerigyrwyn - 1,183m Cerigyrwyn - 1,183m
 Llettyhen - 1,184m Llettyhen - 1,184m
 Elerch - 1,378m Elerch - 1,378m
 Cwmdarren - 1,386m Cwmdarren - 1,386m
 Llanerchclwydau - 1,610m Llanerchclwydau - 1,610m
 Fron Feurig - 1,624m Fron Feurig - 1,624m
 Cwm Sebon - 1,757m Cwm Sebon - 1,757m
 Cwmsymlog - 1,793m Cwmsymlog - 1,793m
 Taylor's Shaft, Cwmsymlog - 1,859m Taylor's Shaft, Cwmsymlog - 1,859m
 Pryse's Shaft - 1,944m Pryse's Shaft - 1,944m
 Mynydd Gorddu - 1,964m Mynydd Gorddu - 1,964m