Alwen

This operational catchment is part of the Dee management catchment and is managed by The Environment Agency (ENG) and Natural Resources Wales (WAL)

Alwen - above Afon Brenig

Alwen - Ceirw to Brenig

Alwen - Dee to Ceirw

Brenig - reservoir and east catchment

Brenig - trib from Llyn Bran

Ceirw - above Nug

Ceirw - Alwen to Medrad

Ceirw - Medrad to Nug

Ffrauer

Medrad

Merddwr (Dee)

Nug

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