Afon Ddu (Drum)

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Afon Ddu is a stream in Snowdonia, north Wales. It is a tributary of Afon Dulyn which itself is a tributary of the river Conwy.

Afon Ddu drains the south-eastern slopes of Drum and Foel-fras, mountains in the Carneddau mountain range.

(NB - There is another river of the same name, also a tributary of the River Conwy, some 3 miles to the south-east.