PEN-YR-ORSEDD SLATE QUARRY, NANTLLE VALLEY

Site Details

NPRN
40565
Map Reference
SH55SW
Grid Reference
SH50985377
Unitary (Local) Authority
Gwynedd
Old County
Caernarfonshire
Community
Llanllyfni
Type of Site
SLATE QUARRY
Broad Class
Industrial
Period
Post Medieval;19th Century

Site Description

The Pen-yr-orsedd Slate Quarry opened around 1816 and closed around 2000. Its most notable feature in the later years was the complex series of aerial ropeways known as 'Blondins'. There is also a surviving engine house on the site.
J.Wiles, RCAHMW, 17 June 2004.