The hill was extensively mined for minerals like Cassiterite and Wolframite, particularly up until the First World War. Mapping efforts have identified approximately 1000 shafts, pits, and other trial excavations for mineral extraction. One notable endeavor was the Excelsior mine tunnel, which is documented separately.
1881… 1914-1918
Publications (3)
(1920); BGS - Mineral Resources of GB (c1920s) Vols XIV, XV, XVI, XVII, XVIII - Fireclay; Arsenic & Antimony Ores; Refactory Materials, Lead & Zinc of Scotland, Rock-Salt and Brine (5 books); 777 pages
(1923); BGS - Mineral Resources of GB (c1920s) Vol I - Tungsten & Manganes Ores; 93 pages
Dines, Henry George (1956); BGS - Regional Memoirs - Metalliferous Mining Region of South West England Vol2, The; 335 pages