20 years of the OS MasterMap Topography Layer
Celebrating 2 decades since we launched the most detailed and geographically complete dataset of Great Britain
By Ordnance Survey
Our highly accurate geospatial data and printed maps help individuals, governments and companies to understand the world, both in Britain and overseas.
Products and solutions featured in this blog
OS MasterMap Topography Layer
A map dataset of Great Britain's landscape – from roads to fields, to buildings and trees, fences, paths and more.
