Coedty is the lowest of the Dolgarrog cluster — a five-hectare balance-tip hydro reservoir on the Afon Porth-llwyd below Llyn Eigiau, holding wild brown trout. All methods permitted except maggot and groundbait. Two-fish limit. Easy bank access for a Carneddau water, which is to say sensible boots and the willingness to walk.
- Reservoir
- Ordovician volcanics sediment

