Ynys-isaf, Powys

• Parish/Community: Ystradgynlais
• Unitary Authority: Powys
• Region: Wales

• Category: Populated Place
• Type: Suburban Area

• Latitude/Longitude: 51°47'20"N 3°44'54"W
• Eastings/Northings: 279500, 211500
• OS Grid: SN795115
• Mapcode Local: GBR Y6.YGTQ
• Mapcode Global: VH5G2.Z968

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