The Afon Aber is a small river in

Gwynedd Gwynedd (; ) is a county and preserved county (latter with differing boundaries; includes the Isle of Anglesey) in the north-west of Wales. It shares borders with Powys, Conwy County Borough, Denbighshire, Anglesey over the Menai Strait, an ...

that enters Liverpool Bay on the coast of North Wales at Abergwyngregyn, . It rises in the Carneddau mountains on the northern watersheds of

Drum The drum is a member of the percussion group of musical instruments. In the Hornbostel-Sachs classification system, it is a membranophone. Drums consist of at least one membrane, called a drumhead or drum skin, that is stretched over a ...

, Foel Fras and

Garnedd Uchaf , List of Furths, Furth Carnedd Gwenllian (named Y Garnedd Uchaf before 2009) is a minor summit of the Carneddau range in Snowdonia, Wales, and included in the Welsh 3000s. From the summit, distant views to the north can extend as far as Irel ...

and the eastern watersheds of

Drosgl Y Drosgl is a summit of the Carneddau range in Snowdonia, Wales Wales ( cy, Cymru ) is a country that is part of the United Kingdom. It is bordered by England to the east, the Irish Sea to the north and west, the Celtic Sea to the so ...

and Moel Wnion. It is principally noted for the spectacular waterfall of one its principal tributaries, the

Aber Falls Aber Falls ( cy, Rhaeadr Fawr) is a waterfall located about two miles (3 km) south of the village of Abergwyngregyn, Gwynedd, Wales. The waterfall is formed as the plunges about over a sill of igneous rock in the foothills of the range. ...

, where it leaves the hills and descends in a single drop to the valley floor. The river, joined by the other main tributary, the Afon Anafon, then flows through a densely wooded valley which is now a

nature reserve A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, or features of geological o ...

before entering the sea just north of Abergwyngregyn.

References

Abergwyngregyn Rivers of Gwynedd Rivers of Snowdonia {{Wales-river-stub