Northern England, also known as the North of England, North Country or simply the North, is the northern part of England. People have different ideas about which parts of England are in Northern England, but it usually includes the counties of Cheshire, Cumbria, County Durham, Lancashire, Northumberland, Westmorland and Yorkshire, as well as parts of Lincolnshire. There are big cities in Northern England, but there are also large mountains and lakes. The biggest Northern cities are Leeds, Liverpool, Manchester, Newcastle-upon-Tyne and Sheffield.