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Hill's Tramroad: Pwll Du Tunnel South Portal

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Map ReferenceSO20NW
Grid ReferenceSO2486009840
Unitary (Local) AuthorityTorfaen
Old CountyMonmouthshire
Type Of SiteTUNNEL
PeriodPost Medieval
The southern portal of Pwll Du tunnel (nprn 85830), carrying Hill's Tramroad (nprn 85860). The tunnel was probably made from the northwards extension to Pwll Du in 1815 of a mining level in the hillside north of Blaenavon Ironworks (nprn 34134). In July 2000, the portal was half buried and blocked but the top of the arch of white-brick voussoirs was visible.
RCAHMW, 06 November 2007.