- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 52°21'38"N 3°25'35"W
- Eastings/Northings: 302953, 274595
- OS Grid: SO029745
- Mapcode Local: GBR 9M.SC12
- Mapcode Global: VH68T.KXCL
Location and coordinates are for the approximate centre of Bwlch-y-sarnau within this administrative area.
Geographic features and populated places may cross administrative borders.