Dulyn

Llyn Dulyn (Welsh for 'black lake') is a lake on the edge of the Carneddau range of mountains in Snowdonia, North Wales. The lake is 33 acres (130,000 m2)

Afon Dulyn (English : River Dulyn) is the outflow from Llyn Dulyn, a lake in the Carneddau mountains in north-west Wales. It is a tributary of the river

Dyflin, modern Icelandic Dyflinn and modern Manx Divlyn as well as Welsh Dulyn and Breton Dulenn. Other localities in Ireland also bear the name Duibhlinn

Geirionydd Afon Ddu (1) at Dolgarrog Afon Porth-llwyd at Dolgarrog Afon Dulyn at Tal-y-bont Afon Ddu (2) Afon Garreg-wen Ffrwd Cerriguniawn Afon Melynllyn

Foel-fras, mountains in the Carneddau mountain range. It is a tributary of Afon Dulyn, itself is a tributary of the river Conwy. A third is a stream flowing north-west