Covering Ireland, these maps are geographically centred on popular local tourist spots these large format maps are ideal for planning and referencing as well as for walkers as they include public rights of way. The Discovery Raster is in principle, the digital version of the Discovery mapping series, originally designed for tourist and leisure activities. It is derived from a 1:10,000 digital database and aerial photography of photo scale 1:40,000 with field verification. Some data is derived from appropriate external organisations.There are 240 tiles in the series (Republic of Ireland). Each tile covers a ground area of 20km x 20km, and all are available in Irish Grid (IG).