Nant Tarthwynni, Powys

• Parish/Community: Talybont-on-Usk
• Unitary Authority: Powys
• Region: Wales

• Category: Water Feature
• Type: Other Water Feature

• Latitude/Longitude: 51°51'59"N 3°19'48"W
• Eastings/Northings: 308500, 219500
• OS Grid: SO085195
• Mapcode Local: GBR YR.SQKL
• Mapcode Global: VH6CD.7B8Y

Location and coordinates are for the approximate centre of Nant Tarthwynni within this administrative area. Geographic features and populated places may cross administrative borders.