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Map Collections at UCD and on the Web: Request OSi Digital Data

Find, access and purchase maps at UCD Library. Lists of map resources and suppliers on the web. Examples of map symbols and scales. Copyright and booking forms.

OSi Discovery Series Vector Tiles

Both sets of data are in vector format and in the Irish Grid projection coordinate system.    Resolution: Contours: vertical interval of 10m. 

Please complete and submit the application form OSi Mapping Request Form: Discovery Vector and Contour Vector Data to request up to five tiles. See bottom of this page to find out about requesting a single shapefile of Discovery contour data for the Republic of Ireland.


Discovery Tiles Index

Click on the Discovery Index above to find the tile (s) you need. Each of the 251 tiles which cover the country are represented on the squares above. Tiles for your area of interest are available to obtain by request by completing the online application form above.

For each square shown above two tiles can be supplied, e.g. 1838_C for the contour lines layer and 1838_D for the Discovery vector layer. Don't forget to ask for both!

Here's an enlarged extract from the index which shows you how to find the right tile number:

Read the Eastings along the bottom of the grid, followed by the Northings up the side to get your tile number.

Read the number on the vertical line at the left hand side of the square you need. Next, read the number on the horizontal line below the square you need. In this example above the square coloured blue is tile number 2408. In other words the Easting number is 24 and the Northing number is 08.

OSI Discovery Contours Data in Shapefile format for Republic of Ireland - in Irish Grid (IG) coordinate system

This option allows you to request OSi Discovery Contours for the Republic of Ireland in shapefile format. Only the contour data is included in this shapefile, it does not include the Discovery Vector Base Map data.

Please complete and submit the application form OSi Mapping Request Form: Discovery Vector and Contour Vector Data to request this shapefile. 

OSi Digital Data




Every building, road, fence, waterway, site boundary, field, etc is represented as a Point, Line or Polygon in OSi's most detailed and most up-to-date spatial dataset 

Click on THIS LINK and complete the online form OSi Mapping Request Form: Prime II Data

When the form is completed click on the Submit button to send your request

During weekday working hours the submitted mapping request will be responded to within 48 hours.


A view of PRIMEII data within ArcGIS Desktop with a basemap from MapGenie



Historic 6 inch Colour 1st edition  1829 - 1842
Historic 6 inch B&W 1st edition  1829 - 1842
B&W Historic 6 inch  early to mid 20th century
B&W Historic 25 inch 1888 - 1913

For data requests not exceeding 4 separate maps please submit the application form OSI Mapping Request Form - TIFF Data 

If you have several sites, or if you have one site but would like each of the above products for that site please use MapGenie.

MapGenie includes all of the above products in raster format and can be used in ArcGIS, ArcGIS Online, QGIS and some versions of AutoCad.

All of the details about MapGenie are here

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