dumps located in fields northeast of Trevessa Farm, along with a collapsed crosscut adit to the northwest. This site represents a bedded lead-zinc deposit that was exploited between 1854 and 1860, yielding approximately 4,000 tons of zinc ore and 18 tons of lead ore.
Publications (3)
- (1921); BGS - Mineral Resources of GB (c1920s) Vol XXI - Lead, Silver and Zinc: Cornwall, Devon, Somerset; 88 pages
- Dines, Henry George (1956); BGS - Regional Memoirs - Metalliferous Mining Region of South West England Vol1, The; 567 pages
- Dines, Henry George (1956); BGS - Regional Memoirs - Metalliferous Mining Region of South West England Vol2, The; 335 pages
