Lough Neagh can be found in which country?

Lough Neagh is a large freshwater lake in Northern Ireland. It is the largest lake by area in the British Isles, with a surface area of 151 square miles (392 square kilometres). It supplies 40% of Northern Ireland's water. Its main inflows are the Upper River Bann and River Blackwater, and its main outflow is the Lower River Bann. Its name comes from Irish: Loch nEachach, meaning "Eachaidh's lake". The lough is owned by the Earl of Shaftesbury.

Geologically the Lough Neagh Basin is a depression, built from many tectonic events dating back as far as 400 million years ago. These tectonic events are responsible for a NE-SW bedrock structure which has controlled many subsequent events. During the Paleozolic era, the Lough Neagh Basin was a depositional graben.