Not necessarily Roman in age.
Publications (2)
- (1919); BGS - Mineral Resources of GB (c1920s) Vol IX - Iron Ores - Durham, East Cumb., North Wales, Derbyshire, IOM, Bristol, Somerset, Devon & Cornwall; 96 pages
- Dines, Henry George (1956); BGS - Regional Memoirs - Metalliferous Mining Region of South West England Vol2, The; 335 pages
