Shallow workings.
GCR: Cambrian–Ordovician exhalative Mn and Fe mineralization, North Wales
External Links
Publications (3)
- (1923); BGS - Mineral Resources of GB (c1920s) Vol I - Tungsten & Manganes Ores; 93 pages
- Down, C.G.; NMRS (1980); British Mining 14; Manganeses Mines of North Wales, The
- JNCC (2010); Mineralization of England and Wales; pp. 210-215