OSNI is the official Government organisation responsible for supplying mapping and geographic information services for Northern Ireland. It completed the world's first large-scale mapping of an entire country by 1846 at a scale of 6" to one mile. This was followed by an even more comprehensive survey, completed in 1867!
 | Ordnance Survey Northern Ireland - Belfast Discoverer Guide Map Belfast Standard: £5.80 Standard: A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Armagh City Street Map Armagh City Street Map Standard: A folded paper map, printed on both sides, with an integral protective card cover. Primarily this product gives indexed street mapping at 1:10 000 scale of Armagh City, and also of Keady, Richhill, Tandragee and Market... | From £5.90 | Buy Now » |
 | Ordnance Survey Northern Ireland - Armagh Discoverer Guide Map Armagh A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish landmass. Disc... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Ballycastle Discoverer Guide Map Ballycastle A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish landmass.... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Ballymena Street Map Ballymena Street Map Standard: A folded paper map, printed on both sides, with an integral protective card cover. Primarily this product gives indexed street mapping at 1:10 000 scale of Ballymena. The reverse of the map carrys a large, 1:50 000 scale... | From £5.90 | Buy Now » |
 | Ordnance Survey Northern Ireland - Ballymoney Discoverer Guide Map Ballymoney A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish landmass. ... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Belfast Pocket Guide Map Belfast Pocket Guide Standard: A handy and very compact guide to Belfast, ideal for short trips. The street mapping is at a very clear scale, and there is an index of streets at the rear, along with an "About Belfast" section which discusses main plac... | From £3.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Belfast Street Map Belfast Street Map with Index Booklet Standard: The newest edition of this Belfast street map with index. Full street name coverage is provided, at an easy to read scale of 1:12 000. Information includes identification of main routes, one way streets,... | From £5.90 | Buy Now » |
 | Ordnance Survey Northern Ireland - Coleraine Discoverer Guide Map Coleraine Standard: A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish ... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Craigavon Discoverer Guide Map Craigavon A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish landmass. D... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Craigavon Street Map Craigavon,Lurgan&Portadown Street Map Standard:£5.70 A folded paper map, printed on both sides, with an integral protective card cover. This double sided product gives street mapping at 1:10 000 scale, of the whole area around Craigavon. This includes... | From £5.90 | Buy Now » |
 | Ordnance Survey Northern Ireland - Derry Street Map Derry Street Map Standard:£5.70 A map from the OS Northern Ireland district series. This is a folded paper map with an integral card cover, to which an index booklet is attached. The index booklet is associated with the primary map; a 1:10 000 scale L... | From £5.70 | Buy Now » |
 | Ordnance Survey Northern Ireland - Enniskillen Discoverer Guide Map Enniskillen A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish landmass.... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Fermanagh Lakeland- Lwr Lough Erne Guide Map Fermanagh Lakeland- Lwr Lough Erne Standard: The Fermanagh Lakeland Lower Lough Erne Outdoor Pursuits and Navigation Guide. Mapping is single sided, showing the area at a scale of 1:25 000. Mappping features an extensive range of symbols associated wi... | From £5.25 | Buy Now » |
 | Ordnance Survey Northern Ireland - Fermanagh Lakeland- Upr Lough Erne Guide Map Fermanagh Lakeland- Upr Lough Erne Standard: The Fermanagh Lakeland Upper Lough Erne Outdoor Pursuits and Navigation Guide. Mapping is single sided, showing the area at a scale of 1:25 000. Mappping features an extensive range of symbols associated wi... | From £5.25 | Buy Now » |
 | Ordnance Survey Northern Ireland - Larne Discoverer Guide Map Larne A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish landmass. Disco... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Lisburn City Street Map Lisburn City Street Map Standard:£5.70 A folded paper map, printed on both sides, with an integral protective card cover. Primarily this product gives indexed street mapping, at 1:10 000 scale, of Lisburn City and also of Hillsborough and Moira at th... | From £5.70 | Buy Now » |
 | Ordnance Survey Northern Ireland - Londonderry Discoverer Guide Map Londonderry A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish landmass. D... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Lough Neagh Discoverer Guide Map Lough Neagh Standard:£5.80 A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the ... | From £5.80 | Buy Now » |
 | Ordnance Survey Northern Ireland - Lower Lough Erne Discoverer Guide Map Lower Lough Erne Standard:£5.80 A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of... | From £5.80 | Buy Now » |
 | Ordnance Survey Northern Ireland - Monaghan-Keady Discoverer Guide Map Monaghan-Keady A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish landmas... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Newry & Mourne Street Map Newry & Mourne Street Map Standard:£5.70 A map from the OS Northern Ireland district series. This is a folded paper map with an integral card cover, to which an index booklet is attached. Primarily this is a 1:50 000 scale Newry and Mourne road map, b... | From £5.70 | Buy Now » |
 | Ordnance Survey Northern Ireland - Omagh & Fintona Street Map Omagh & Fintona Street Map Standard:£5.70 A folded paper map, printed on both sides, with an integral protective card cover. Primarily this product gives indexed street mapping at 1:10 000 scale of Omagh city, and also of Fitona at the same scale with... | From £5.90 | Buy Now » |
 | Ordnance Survey Northern Ireland - Slieve Croob Leisure Map Slieve Croob Standard: This Slieve Croob Outdoor Pursuits Map gives coverage of the remainder of the Mourne Area of Outstanding Natural Beauty which is not covered by the Mourne Outdoor Pursuits map. Mapping provides information on walking, riding, ca... | From £5.25 | Buy Now » |
 | Ordnance Survey Northern Ireland - Sperrins Activity Map Sperrins Activity Map Standard: A folded paper map of Sperrins. Printed on both sides, this map shows the wider Sperrins area at a scale of 1:100 000, with High Sperrins at 1:25 000 on the reverse. The National Cycle Network routes are shown, scenic r... | From £7.20 | Buy Now » |
 | Ordnance Survey Northern Ireland - Strabane Discoverer Guide Map Strabane Standard:£5.80 A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Iri... | From £5.80 | Buy Now » |
 | Ordnance Survey Northern Ireland - Strangford Lough Discoverer Guide map Strangford Lough A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish land... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - The Mournes Discoverer Guide Map The Mournes A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish landmass. D... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - The Mournes Leisure Map The Mournes Standard: This very popular map covers the larger part of the Mournes, and is printed on paper which is chemically treated to be waterproof. The map is reversible; on the first side is the main Mournes map, which has contour lines and alti... | From £6.90 | Buy Now » |
 | Ordnance Survey Northern Ireland - The Sperrins Discoverer Guide Map The Sperrins A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish landmass... | From £6.00 | Buy Now » |
 | Ordnance Survey Northern Ireland - Upper Lough Erne Discoverer Guide Map Upper Lough Erne A folded paper topographic map from Ordnance Survey of Northern Ireland. These Discoverer maps are at the same scale, and in very similar format to the OSI Discovery maps and, together, the ranges cover the entirety of the Irish land... | From £6.00 | Buy Now » |