Remains of 4 shafts.
Year | Activity |
---|---|
<1708 | Worked by William Waller’s Mine Adventurers. |
1722 | Adventurers relinquish lease. |
c 1850 | Company formed by the Francises for promotion. Robert Mushet, a metallurgist from the Forest of Dean takes on the mine, calling it Eaglebrook. He claimed the mine to be the Welsh Potosi. He then goes on to describe two adits showing foot wide, solid lead veins. Not suprisingly share prices rocket. |
c1851 | Letter published criticising the mine, after which share value drops somewhat- see below for quote by J.M. Davies… |
1854 | Mine is working with a new 40ft waterwheel. Deep adit connects with Western Engine Shaft. |
1870s | Work mainly around eastern end of the mine. |
1874 | Final closure with final depth of 50 fm. |
I find that the place now being foisted on the public as the Welsh Potosi, is a little mine hitherto known as Nant-y-Cagl (‘nant’, a brook and ‘cagl’ dirt) the word cagl suggesting, probably, the new name ‘eagle’. To this there would be no objection, for a new mine may be entitled to a new name; and that of a bird of prey is as suitable as any, if it were quite certain that such alteration were not adapted for the purpose of deceit … No man, even in the most visionary foit of mining mania could find in this concern anything suggestive of a Potosi; but I will at present confine myself to one or two observations and let the facts speak for themselves. Instead of ‘20 ton of ore weekly’ which ‘no doubt can be quadrupled’, there is on the bank not as much stuff as will fill three wheelbarrows. On the top of this little pile is a stone or ore placed conspicuously, like the bait on the rat-trap. The copper ore is next to nothing, and I could only find one bit, about half as big as a hazel nut … No ore in the county contains ‘20lb of silver to the ton’… Eaglebrook yields only 8oz. One would have expected more silver than this in a Potosi that had furnished armies, and had kings for creditors.
External Links
Publications (5)
- (1922); BGS - Mineral Resources of GB (c1920s) Vol XX - Lead and Zinc: Cardiganshire & West Montogmeryshire; 242 pages
- Bick, D.E. (1991); Old Metal Mines of Mid-Wales, The; North of Goginan - Part 3; pp. 48-50
- Hughes, Simon J.S. (2004); WMPT Newsletter April - Talybont - Some Recent work on Ancient Mining in Mid Wales; 15 pages
- JNCC (2010); Mineralization of England and Wales; pp. 312-315
- Liscombe & Co (1880); Mines of Cardiganshire, Montgomereyshire & Shropshire; 52 pages