Pantdreiniog quarry, 19th-century slate quarry in Bethesda, Wales.
Located at 175 meters elevation, Pantdreiniog quarry encompasses 25 acres of land with distinct blue and purple slate rock formations across the site.
The quarry started operations in 1825 and functioned until 1923, playing a notable role during the Penrhyn Great Strike of 1900-1901.
The site employed numerous local workers and operated as a cooperative in 1901, representing the strong connection between slate extraction and Welsh industrial heritage.
The quarry maintains an internal tramway system and features various industrial structures, including hauling engines, aerial ropeways, and hydraulic pumping stations.
Pantdreiniog produced specialized slate slabs for billiard tables, mantelpieces, and cisterns, alongside standard roofing materials known for exceptional durability.
Location: Gwynedd
Elevation above the sea: 175 m
GPS coordinates: 53.18353,-4.06114
Latest update: March 17, 2025 21:38
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