Llwyngwern quarry, Former slate quarry in Pantperthog, Wales.
The Llwyngwern quarry stretches across the western slope of Mynydd Llwyn-gwern, featuring multiple preserved mining structures and deep excavation pits.
Starting operations in 1828, the quarry reached its production peak in 1902 with an output of 2,087 tons of slate products from its extensive tunnel system.
The site represents Welsh industrial heritage, with 52 percent of the current local population maintaining the Welsh language in daily communication.
The quarry facilities now serve as part of the Centre for Alternative Technology, accessible from Machynlleth railway station located 2.1 miles away.
Monthly production records from 1868 to 1888 by estate agent O. J. Hughes document detailed financial performance and operational statistics of the quarry.
Location: Wales
Location: Montgomeryshire
Location: Powys
Inception: 1828
GPS coordinates: 52.62350,-3.84043
Latest update: March 4, 2025 13:21
Centre for Alternative Technology
60 m
Braichgoch Slate Mine
3.5 km
Dyfi Bridge
2.8 km
Centre for Alternative Technology Railway
56 m
Alfred Hughes Memorial
3.3 km
Mynydd Llwyn-gwern
1.1 km
Church of St Dyfrig
3.3 km
Corris
3.3 km
Capel Salem
3.4 km
Pont Felin-y-ffridd
2 km
Bethesda Welsh Baptist Church
3.5 km
Monument to The Owen Famliy In Machynlleth Cemetery,Garth Road (Se Side)
3.5 km
Glyndwr Hotel,Heol-Y-Doll
3.6 km
No.27 Morris Cottages,Heol-Y-Doll
3.5 km
No.31 Morris Cottages,Heol-Y-Doll
3.5 km
Boundary Walls and Railings to The E. Part of The Churchyard to The Parish Church of St.Peter,Heol P
3.6 km
No.33 Morris Cottages,Heol-Y-Doll
3.5 km
No.25 Morris Cottages,Heol-Y-Doll
3.5 km
Pillar Box On Corner Below Minfor, Heol-Y-Doll (Ne Side)
3.6 km
No.23 Morris Cottages,Heol-Y-Doll
3.5 km
No.14 Heol-Y-Doll
3.6 km
No.29 Morris Cottages,Heol-Y-Doll
3.5 km
No.21 Morris Cottages,Heol-Y-Doll
3.5 km
No.19 Morris Cottages,Heol-Y-Doll
3.5 km
No.17 Morris Cottages,Heol-Y-Doll
3.5 km
No.15 Morris Cottages,Heol-Y-Doll
3.5 km
Saron Independent Chapel
3 km
Llys Maldwyn
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