Latitude: 51.8284 / 51°49'42"N
Longitude: -3.4571 / 3°27'25"W
OS Eastings: 299680
OS Northings: 215421
OS Grid: SN996154
Mapcode National: GBR YL.VWNM
Mapcode Global: VH6CJ.196Q
Plus Code: 9C3RRGHV+84
Map layers use either open data or maps from the Ordnance Survey and Maptiler APIs.
Historic map layers are currently experimental and may not necessarily be available all the time.
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NLS (Historic)
Entry Name: Cantref Reservoir dam, including valve house, draw-off tower and spillway (partly in Hirwaun)
Listing Date: 6 August 2005
Last Amended: 29 July 2009
Grade: II
Source: Cadw
Source ID: 84836
Building Class: Water Supply and Drainage
ID on this website: 300084836
Location: On the W side of the A470 Merthyr Tydfil to Brecon road approximately 10km NNW of Merthyr Tydfil.
County: Powys
Town: Brecon
Community: Llanfrynach
Community: Llanfrynach
Locality: Nant-ddu
Traditional County: Brecknockshire