Substantial underground workings. Remains of mill with some machinery. Rhiwbach tramway incline opposite.**
External Links
Publications (44)
- (1994); CATMHS - Newsletter 039-July; 37 pages
- (1995); CATMHS - Newsletter 041-January; 33 pages
- (1997); CATMHS - Newsletter 049-March; 26 pages
- (1999); CATMHS - Newsletter 057-June; 19 pages
- (2000); CATMHS - Newsletter 059-January; 43 pages
- (2000); CATMHS - Newsletter 061-September; 38 pages
- (2018); CATMHS - Newsletter 131-May; 59 pages
- (2020); CATMHS - Newsletter 138-February; 33 pages
- (2021); CATMHS - Newsletter 145-November; 58 pages
- BGS - Mine Plans (large, zoomable) - Correlation Of Workings In Maenofferen Slate Quarry With Workings In Votty And Bowydd Slate Quarry 9th Aril 1963 To 10th July 1964; 1 pages
- BGS - Mine Plans (large, zoomable) - Diphwys 1921 To Extend New Vein Workings Into Maenofferen Liberty. Proposed New Chambers Shown In Red; 1 pages
- BGS - Mine Plans (large, zoomable) - Draft Plan Of Slate Property The Maenofferen Slate Co See Sections; 1 pages
- BGS - Mine Plans (large, zoomable) - Draft Sections Of Slate Property Of The Maenofferen Slate Company Ltd; 1 pages
- BGS - Mine Plans (large, zoomable) - Draft Sections Of Slate Property Of The Maenofferen Slate Company; 1 pages
- BGS - Mine Plans (large, zoomable) - Llwechwedd Maenofferen And Diphwys Areas And Sections; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Coloured Plan Of Old Vein Workings East Of Bowydd Fault; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Floor A Entering Under Middle Vein Hard, Working Under O V Hard,o V Clay Hard And New Vein Hard; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Os Map Of 1918 Showing Locaion Of Slate Quarries And Incline Shown In Colour; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Plan Of B8 Incline In Connection With Proposed Realignment Of Track; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Plan Of Workings And Floor Depths In Old And New Veins East Of Bowydd Fault; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Plan Of Workings In Old Vein Includes Revisions To 1977; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Proposed Connection From E Floor At Mo To Votty Quarry; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Section Of Slate Veins Through Chambers 14,15 And 6; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Coloured Plan Of Back Vein And Quarry Floors; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Coloured Plan Of Floors, Chambers And Veins; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Coloured Plan Of Works Dated February 1862; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Plan Of Chamber 40 And Floors B To F; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Proposed Tunnel From E Floor To Votty Chamber No 21 To Allow Free Drainage Of Mine Water; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Quarry Votty And Bowydd Old Vein; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Skeleton Tracing Showing Traverse Of Floors A,b, C From Bargain No.1 West To The Most Advanced East Workings; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Slate Quarry Blaenau Festiniog; 1 pages
- BGS - Mine Plans (large, zoomable) - Maenofferen Slate Quarry; 1 pages
- BGS - Mine Plans (large, zoomable) - Meanooferen Section On Line Of Chamber 5, Middle Vein, Chamber 13 Old Vein; 1 pages
- BGS - Mine Plans (large, zoomable) - Old Vein East Of Bowydd Fault; 1 pages
- BGS - Mine Plans (large, zoomable) - Os Map Showing Votty And Maenofferen Exchanges Agreement, Coloured Plan Of Workings; 1 pages
- BGS - Mine Plans (large, zoomable) - Plan And Sections Of Proposed New Dam For Llyn Bowydd Blaenau Festiniog; 1 pages
- BGS - Mine Plans (large, zoomable) - Plan Of Slate Property Of The Maen Offeren Slate Company's Leasehold; 1 pages
- BGS - Mine Plans (large, zoomable) - Plan Of Votty Workings New Vein In Maenofferen Quarry. Coloured Plan Of Floors And Workings With Revisions Until 1953; 1 pages
- BGS - Mine Plans (large, zoomable) - Section Of Narrow Vein And Old Vein In Maenofferen Quarry 1921; 1 pages
- BGS - Mine Plans (large, zoomable) - Section Of The Maenofferen Quarry Incline Extension; 1 pages
- Fellows, Roy (2010); Maenofferen Visit 2010; 3 pages
- Mining History Trust of Ireland - Celebrating 20 Years; 102 pages
- Pierce Jones, Gwynfor and Dafis, Dafydd Walter (2004); PDMHS (Peak District Mines Historical Society) 15-4&5 - Water Power in the Slate Mines of East Festiniog; 5 pages (11-15)
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
