Latitude: 53.0641 / 53°3'50"N
Longitude: -4.2254 / 4°13'31"W
OS Eastings: 250977
OS Northings: 354185
OS Grid: SH509541
Mapcode National: GBR 5L.BS2H
Mapcode Global: WH54Z.275V
Plus Code: 9C5Q3Q7F+JR
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Historic map layers are currently experimental and may not necessarily be available all the time.
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NLS (Historic)
Entry Name: Engine and Compressor House
Listing Date: 21 July 2000
Last Amended: 21 July 2000
Grade: II
Source: Cadw
Source ID: 23673
Building Class: Industrial
ID on this website: 300023673
Location: Located on Level VIII (Bonc Brig) of the Pen-yr-Orsedd Slate Quarry towards the foot of the modern steep access road from Y Fron.
County: Gwynedd
Town: Caernarfon
Community: Llanllyfni
Community: Llanllyfni
Locality: Pen-yr-Orsedd
Traditional County: Caernarfonshire