Llyn Conwy - Source of The River Conwy

Source of The River Conwy

Whilst the lake is often regarded in a general sense as the source of the river Conwy, much of this area of the Migneint blanket bog contributes water to its uppermost reaches.

The lake itself lies in a small basin and is actually fed by a small number of other unnamed streams within the catchment area, which measures 175ha and ranges in altitude from 435m to 530m. The largest two of these, which enter the lake on its north-western and eastern shores, can be followed for over ¼ mile to the upper edges of the basin, even during drier periods. The heads of these two streams, where the damp ground produces an identifiable flow - at SH774465 on the slopes of Bryn y Bedol, and at SH783467 on the slopes of Pen y Bedw - should perhaps more correctly be regarded as the uppermost sources of the river Conwy.

In times of very heavy rainfall some water is diverted from Cwm Lanerch by means of leats into Llyn Conwy.