What is recorded here
Siambri Ddu is a limestone cave formed through dissolution processes typical of karst landscapes in the Welsh border region. No specific archaeological or folklore history is associated with the site in available records.
This does not grant access. Check current paths, opening conditions and ownership before entering.
Places near here
Pwll DuVisitor information · 382 yd
Lamb & Fox Public HouseBuilding; Building; Building · 455 yd
Old Pwll DuBuilding Platform · 525 yd
Hill's TramroadTramway · 593 yd
Keeper's Pond, Culverted Watercourse NW ofLeat · 797 yd
Blaen PigMountain / peak · 978 yd
Gilwern HillMountain / peak · 1392 yd
Remains of Hill Pits CottagesMountain or hill · 1.1 mi
Blaenavon Iron WorksMuseum · 1.4 mi
Rhymney Brewery & Visitors CentreHeritage attraction · 1.6 mi
Crawshay MemorialMemorial · 1.9 mi
Gilwern War MemorialMemorial · 2.0 mi