Marcheini Fawr, Powys

• Parish/Community: St. Harmon
• Unitary Authority: Powys
• Region: Wales

• Category: Water Feature
• Type: Other Water Feature

• Latitude/Longitude: 52°20'58"N 3°32'8"W
• Eastings/Northings: 295500, 273500
• OS Grid: SN955735
• Mapcode Local: GBR 9H.T24X
• Mapcode Global: VH5CH.N6QN

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