NPRN40546
Map ReferenceSH55SW
Grid ReferenceSH5013053210
Unitary (Local) AuthorityGwynedd
Old CountyCaernarfonshire
CommunityLlanllyfni
Type Of SiteCAUSEWAY
PeriodPost Medieval
DescriptionPart of Dorothea Slate Quarry complex (Nprn40539), arch/tunnel cut through slate loading bank(?) (Nprn40545), first portrayed on OS County series 2nd ed. (Caernarvon. XXI.9 1900).
RCAHMW AP945128/66-7
J.Wiles 17.06.04
