Cwm Boi is a valley in Fernhill, Rhondda, Cynon, Taff
Built-Up Area: Fernhill
Parish/Community: Mountain Ash
Unitary Authority: Rhondda, Cynon, Taff
Region: Wales
Category: Geographic Feature
Type: Valley
Latitude/Longitude: 51°41'2"N 3°24'16"W
Eastings/Northings: 303003, 199299
OS Grid: ST030992
Mapcode Local: GBR HM.54CK
Mapcode Global: VH6D3.YX1V
Location and coordinates are for the approximate centre of Cwm Boi within this administrative area.
Geographic features and populated places may cross administrative borders.