Old Map of County Londonderry by Petty, 1685: Ballymoney, Portrush, Coleraine, Limavady, Downhill Demesne, Roe Valley taride The map is also interesting

The map is also interesting for its historical context

known for its Notre-Dame cathedral

This is one of the finest examples of Saxton's ancient map

Here is a list of notable settlements within the historical boundaries of County Tyrone that were founded before 1840:

Old Map of County Londonderry by Petty, 1685: Ballymoney, Portrush, Coleraine, Limavady, Downhill Demesne, Roe Valley taride The map is also interestingThis map, titled 'County Londonderry', is a detailed political and physical map of County Londonderry, originally published in 1685 by Sir William Petty. It is a later, reduced scale map based on the Down Survey of Ireland, originally undertaken in 1656 to 1658. The Down Survey was the first ever detailed land survey on a national scale anywhere in the world. Its purpose was to measure lands which, following the calamitous English Civil War, much of