Dorothea

aka Cloddfa Truner, Gloddfa Bach, Gloddfa Glanllyn, Hen Dwll, Pen Dwyllt, Twll Bach, Twll Coch, Twll Gallt y Fedw, Twll Ta, Twll Uchaf, or Twll y Weirglodd

Slate Quarry

Worked from 1820 to 1968

Jan 1st, 2024 from GWSI by Buddle-Bot


	North Wales
	Talysarn
	53.054946, -4.2395089
	SH 5000 5320
	Private Land
	100m
	#1,304

Description

A series of flooded pits now appear as a single flooded pit. Remains of buildings, Blondin towers, early 20C Engine House.***

Publications (5)

(1991); CATMHS - Newsletter 031-November; 31 pages
(2002); CATMHS - Newsletter 067-April; 32 pages
Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
Welsh Mines Society (Spr 2010); Newsletter 62
Welsh Mines Society (Spr 2014); Newsletter 70

Featured Images (7)

Dorothea Slate Quarry

Dorothea - Lancashire boilers

Dorothea - Main pit(s)

Dorothea - Engine House

Dorothea - One of the 'pyramids'

Dorothea - mystery shaft near Twll Balast

Dorothea - pumping shaft

Sites within 2km (29)

Gallt y Fedw - 316m
Cornwall - 389m
Twll Balast - 423m
Blaen y Cae - 428m
Tal y Sarn - 495m
Allt Llechi - 587m
Cloddfa Lon Twll Mawr - 591m
Pwll Fanog - 606m
Cloddfa'r Coed - 690m
Cilgwyn - 694m
Gwernor - 700m
Gwernor - 712m
Twll John Fowc - 727m
Wern Ifan - 770m
Pen y Bryn - 793m
Coed Madog - 853m
Nantlle Vale - 854m
Ty Mawr West - 942m
Ty Mawr Green - 984m
Ty'n y Weirglodd - 1,080m
Pen yr Orsedd - 1,162m
Plas Du - 1,270m
Tanrallt - 1,307m
Singrig - 1,412m
Twll Coed - 1,537m
Twll Llwyd - 1,718m
Taldrwst - 1,835m
Fronlog - 1,857m
Nant y Fron - 1,976m