Below Cadair Idris, this natural lake lends its Welsh name, Llyn Mwyngil, to the narrow-gauge railway beside it.
Tal-y-llyn Lake is a llyn in Gwynedd. It is also known as Llyn Myngul. The surrounding countryside is part of Eryri National Park.
The closest station is Machynlleth, 9.1 km to the south. The nearest other lake is Llynnau Cregennen, 7.2 km to the north-west.
