Amendments to 'Gazeteer of Slate Quarrying in Wales'
P95Cwm Eigiau This quarry and Cedryn had a total of 5 Hunter saws the largest assemblage of these fearsome macines, all probably installed c1864
P 101 Hafodlas The 4-blade Hunter saw was installed prior to 1865
P167 Pen y Gwryd Built platform in front of working
P186 Diffwys PANT YR YNN mill is powered by Du Bach stream
P193 Maenofferen Reportetly a Hunter saw was installed here in 1865
P 210 Briach Ddu In 1865 while in the ownership of the Liverpool & Birkenhead Slate Co it was reported that a 4-blade Hunter saw had been in use for 'some time'., despite them being considered unsuitable fort Cambrian Series rock.
P200 Rhiwbach Schollmistresses name Kate Hughes
P212 Cae'n y Coed In 1865 this quarry was listed as having a Hunter saw, but no sawn-ends or other archaeological evidence to support this is known
P 242 Cwm Ebol used by Jenkins of Aberystwyth c 1890
as source for slate
P258/9 All Grid refernces are SH
P 285 & 287 Add Brongyll poss 17th Cent Cambrian early working 1790s (Milner)
P288 Cambrian Martins uphaulage by water balance NW underground was Aberlas workings that extended under Nantyr P289 Water balance tank is from Martins Uphaulage.(Milner)
P284 & 305 Sarphle Should be SJ143328 (Milner)
P293 Craig y Orin Earlist record 1649 (Milner)
P 301 Nantyr Est. 1832. 1870s planned tobe served by an extension of Glyn Valley Tramway
P304 Pen y bryn may have worked c 1800 (Milner)
P 305 Ty Draw Working 16th Cent poss 14th Cent (Milner)
P317 Should be Cnwc y Deryn Also P 344
P318 Cronlwyn 2010 Report of tip reworking
Page 326 Pen y maen SM728276. Worked 1800, possibly
long before. Closed c 1900. Material shipped out at nearby Port Lleug.
Aso pp310 & 349