The deepest lake in Snowdonia, a bleak reservoir in a trench between the Carneddau and Creigiau Gleision.
Llyn Cowlyd is a llyn in Conwy. The surrounding countryside is part of Eryri National Park. For arrivals by rail, North Llanrwst Station is 7.7 km to the east. Llyn Crafnant and Llynnau Mymbyr are among the lakes & lochs within 4.3 km.
