Ordnance Survey South Downs Relief Map - A4

South Downs Relief Map by Ordnance Survey's GeoDataViz team. This 2D flat relief map was created to commemorate the South Downs National Park. The GDV team created this relief map using OS Terrain 5 data. Originally created to mark the 70th anniversary of the 1949 Act of Parliament. Ordnance Survey have re-released by popular demand. Available to purchase as an A4 or A3 relief map.