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OS Terrain 5 support

OS Terrain® 5 is regularly updated in line with other large-scale datasets. It explicitly and accurately models significant features such as roads, railways, quarries and lakes.

Getting started

OS Terrain is the name given to Ordnance Survey’s range of height products. These are three-dimensional models of the bare earth surface known as digital terrain models (DTMs).

Overview (PDF)

The Overview introduces the product and gives context for all users. It highlights key features, provides examples of potential uses for the product and lists details like file sizes, supply formats, etc.

OS Terrain 5 data is provided as a full set of Great Britain in tiles and is available as download only. The national dataset is supplied as 5 km by 5 km tiles of data.

Technical specification (PDF)

The Technical Specification provides detailed technical information about the product. It is targeted at technical users and software developers.

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