Total Output 12,000 tonnes. Hafotty was largest manganese mine in Meirioneth. Hafotty adjacent to Egryn. Egryn re-opened during WW1. Manganese mined using adits and shafts.
External Links
Publications (3)
- (1923); BGS - Mineral Resources of GB (c1920s) Vol I - Tungsten & Manganes Ores; 93 pages
- (2006); WMS Newsletter Issue 54 Spring; 32 pages
- Down, C.G.; NMRS (1980); British Mining 14; Manganeses Mines of North Wales, The; ISBN: 0901450170; pp. 26-27,44-45,52,63,66
