Ordnance Survey of Northern Ireland 1:50,000 Map Sheet 7 – Londonderry 07/22/2026 Sheet 7: Londonderry. Ordnance Survey of Ireland. Covering an area from Fahan in the NW to Dungiven in the SE.
Ordinance Survey Of Northern Ireland Sheet 8 Armagh 1968. T3 Ordinance survey of Northern Ireland sheet 8.