MONAGHAN MAP. Ordnance Survey of Northern Ireland: Monaghan 1:50,000 Map. Sheet 28. Belfast: O.S.N.I., 1982. 2cms to 1 kilometre.[Monaghan, Castleblayney, Middletown, Keady, Markethill, Newtownhamilton, Crossmaglen etc.]. Very good in plastic wallet. IRISH