AÂ number of datasets available through the Ordnance Survey collection in Digimap have been updated over the summer as show in the tables below. OS Data Download: Product Name OSÂ Publication Date OS MasterMap Topography Layer June 2016 OS VectorMap Local Raster July 2016 OS Terrain 5 (DTM) July 2016 OS Terrain 5 (Contours) July 2016 OS […]