 The west wall of the upper pit of Lower Glynrhonwy Quarry | |
| Location | |
|---|---|
  GlynrhonwyLocation in Gwynedd | |
| Location | near Llanberis |
| County | Carnarvonshire (now Gwynedd) |
| Country | Wales, UK |
| Coordinates | 53°07′25″N 4°08′53″W / 53.12361°N 4.14806°W / 53.12361; -4.14806 SH 563 607 |
| Production | |
| Products | Slate |
| Type | Quarry |
| History | |
| Opened | early 1700s |
| Closed | 1930 (1930) |
The Glynrhonwy quarries (also known as the Glyn-Rhonwy quarries) were two adjacent quarries in the Glynrhonwy area, north-west of Llanberis, in Carnarvonshire (now Gwynedd), Wales.
They were:
- Upper Glynrhonwy quarry, known locally as "Glyn Ganol" or "Middle Glyn", which operated from 1861 to 1930, and
- Lower Glynrhonwy quarry, known locally as "Captain Taylor's Quarry", which operated from the early 1700s to 25 January 1930.
The quarries operated internal railways of 2 ft (610 mm) gauge and were served by Glynrhonwy Siding off the LNWR's Caernarfon to Llanberis branch.
Lower Glynrhonwy was acquired by the Air Ministry in 1939 for munitions storage. It occupied the site until 1961. During the Second World War the site generated two extra trains per day on some occasions. The railway siding was taken out of use on 18 December 1956.
A 100 MW pumped storage project, marketed as a "quarry battery", received approval in 2017 and as at 2019 had reached the "detailed engineering design" stage.
References
- Boyd 1990, p. 252.
- Boyd 1990, p. 251.
- Boyd 1990, p. 248.
- The siding and adjacent quarrying, via National Library of Scotland
- "RAF bomb disposal". digiDo. Archived from the original on 28 November 2016. Retrieved 27 November 2016.
- Mitchell & Smith 2010, Map XXVIII.
- Dunn 1958, p. 719.
- "Green light for Welsh storage". 8 March 2017. Retrieved 14 March 2017.
- "Project Status". Snowdonia Pumped Hydro.
Sources
- Boyd, James I.C. (1990) . Narrow Gauge Railways in North Caernarvonshire, Volume 1: The West. Headington: The Oakwood Press. ISBN 978-0-85361-273-5. OCLC 650247345.
- Dunn, J.M. (October 1958). Cooke, B.W.C. (ed.). "The Afonwen Line-2". The Railway Magazine. 104 (690). London: Tothill Press Limited. ISSN 0033-8923.
- Mitchell, Vic; Smith, Keith (2010). Bangor to Portmadoc: Including Three Llanberis Lines. Country Railway Routes. Midhurst: Middleton Press. ISBN 978-1-906008-72-7.
External links
- The lower quarry's entry on the National Monuments Record of Wales (NMRW)'s website
- The upper quarry's entry on the NMRW's website
- Wartime usage, on History Points
- Modern usage – Snowdonia Pumped Hydro
- Modern usage Archived 23 July 2016 at the Wayback Machine, by The Engineer
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| Carnarvonshire Railway |
|---|
| Legend |
| Welsh slate quarries | |
|---|---|
| Blaenau Ffestiniog, Croesor, and Cwm Penmachno areas | |
| Dinas Mawddwy and Aberangell areas | |
| Dulas Valley area | |
| Bethesda area | |
| Llanberis area | |
| Lledr and Conwy valleys areas | |
| Nantlle Valley area | |
| Vale of Llangollen area | |
| Arthog area | |
| Llangolman Area | |
| Outliers | |
