- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 53°8'37"N 3°22'19"W
- Eastings/Northings: 308325, 361622
- OS Grid: SJ083616
- Mapcode Local: GBR 6P.5WYD
- Mapcode Global: WH778.57JQ
Location and coordinates are for the approximate centre of Mynydd-llêch within this administrative area.
Geographic features and populated places may cross administrative borders.