Garn Ddu, Merthyr Tydfil

• Parish/Community: Vaynor
• Unitary Authority: Merthyr Tydfil
• Region: Wales

• Category: Geographic Feature
• Type: Hill or Mountain

• Latitude/Longitude: 51°48'9"N 3°24'55"W
• Eastings/Northings: 302500, 212500
• OS Grid: SO025125
• Mapcode Local: GBR YN.XMFD
• Mapcode Global: VH6CJ.RY8H

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