This map shows the appoximate outline of the catchment area which feeds into the measuring station at Rhos Y Pentref. All the rain which falls onto the blue area, that is not absorbed into the soil or evaporated, will eventually flow to the sea via Rhos Y Pentref.
This local monitoring station catchment area is contained within the Severn Uplands management catchment area.
Acknowledgement: Data from the UK National River Flow Archive. Used under the terms of the NRFA Data Licence.