This dataset is published as Open Data.OS Terrain® 50 is an open height dataset of contours with spot heights, breaklines, coastline, lakes, ridges and formlines for Great Britain.What OS Terrain 50 provides you withModel wind direction and lines of sightMake better decisions about where to locate wind turbines and mobile phone masts. OS Terrain 50 lets you model wind direction and lines of sight at your desk, meaning fewer site visits.Plan landscape defencesGet the bigger picture about flood risk, soil erosion and pollution. By showing steep hillside gradients, OS Terrain 50 helps you plan flood defences and safeguard the landscape.More engaging mapsWith the contours version of OS Terrain 50, you can shade in hills to show their height. This extra sense of depth is ideal for walking maps and apps.Surface model entire landscapesGet an accurate, uncluttered view of the terrain with the grid version of OS Terrain 50. Its 50 metre post spacing gives you a surface model of the entire landscape, including major roads, large lakes and estuaries.Take account of tidesThe contours dataset also includes mean high and low water boundaries.

This dataset is published as Open Data.OS Terrain® 50 is an open height dataset of contours with spot heights, breaklines, coastline, lakes, ridges and formlines for Great Britain.What OS Terrain 50 provides you withModel wind direction and lines of sightMake better decisions about where to locate wind turbines and mobile phone masts. OS Terrain 50 lets you model wind direction and lines of sight at your desk, meaning fewer site visits.Plan landscape defencesGet the bigger picture about flood risk, soil erosion and pollution. By showing steep hillside gradients, OS Terrain 50 helps you plan flood defences and safeguard the landscape.More engaging mapsWith the contours version of OS Terrain 50, you can shade in hills to show their height. This extra sense of depth is ideal for walking maps and apps.Surface model entire landscapesGet an accurate, uncluttered view of the terrain with the grid version of OS Terrain 50. Its 50 metre post spacing gives you a surface model of the entire landscape, including major roads, large lakes and estuaries.Take account of tidesThe contours dataset also includes mean high and low water boundaries.