# Contextual or Derived Mapping Fundamentals

The products within the **Contextual and Derived Mapping portfolio** comprise of raster and vector digital maps designed to make OS data easier to access, customise and use for creating web, mobile and desktop applications. The following pages provide details covering the Contextual or Derived Mapping Portfolio of products:

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><h3>Contextual or Derived Mapping Products Overview</h3></td><td>The overview contains product information relating to the Contextual or Derived Mapping products, including available formats, metadata, data compression details, etc.</td><td><a href="contextual-or-derived-mapping-fundamentals/contextual-or-derived-mapping-products-overview">contextual-or-derived-mapping-products-overview</a></td></tr><tr><td><h3>Contextual or Derived Mapping Products Technical Specification</h3></td><td>The technical specification provides detailed technical information relating to the Contextual or Derived Mapping products.</td><td><a href="contextual-or-derived-mapping-fundamentals/contextual-or-derived-mapping-products-technical-specification">contextual-or-derived-mapping-products-technical-specification</a></td></tr><tr><td><h3>Contextual or Derived Mapping Downloads</h3></td><td>The downloads page provides links to download georeferencing files, map legends, tile lists, and XML schemas for the Contextual or Derived Mapping products.</td><td><a href="contextual-or-derived-mapping-fundamentals/contextual-or-derived-mapping-downloads">contextual-or-derived-mapping-downloads</a></td></tr></tbody></table>

## Contextual or Derived Mapping product portfolio

The Contextual or Derived Mapping Portfolio includes nine products:

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><h3>1:25 000 Scale Colour Raster</h3></td><td>The 1:25 000 Scale Colour Raster data product mirrors the OS Explorer Map series of products. At this scale, users can get a detailed overview of environmental and leisure features across Great Britain.</td><td></td><td><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2Fyr3zQkWIcggtrJ2UBc2l%2F1_25k_Colour_Raster_Cover.png?alt=media&#x26;token=516c0017-3210-4860-8f3f-d0b29d80cdca">1_25k_Colour_Raster_Cover.png</a></td><td><a href="1-25-000-scale-colour-raster">1-25-000-scale-colour-raster</a></td></tr><tr><td><h3>1:50 000 Scale Colour Raster</h3></td><td>The 1:50 000 Scale Colour Raster data product mirrors the OS Landranger Map series of products. As a mid-scale data product, it is well-suited to navigation applications, contextualising location-based data, or as a map in its own right.</td><td></td><td><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FNwto0UwJ5i6u9Vui4sQy%2F1_50K_Colour_Raster_Cover.avif?alt=media&#x26;token=667ea823-7342-4955-b2a6-0f3cbe9a0d96">1_50K_Colour_Raster_Cover.avif</a></td><td><a href="1-50-000-scale-colour-raster">1-50-000-scale-colour-raster</a></td></tr><tr><td><h3>1:250 000 Scale Colour Raster</h3></td><td>The 1:250 000 Scale Colour Raster data product is a small-scale digital raster mapping product that provides a regional view of Great Britain similar in content and appearance to a traditional road atlas. An OpenData product.</td><td></td><td><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2F2xstr6REgoFR5Wk0cWxW%2F250k-RasterWebSize.png?alt=media&#x26;token=a40e21b0-ec4a-4768-8f2a-801104428ffd">250k-RasterWebSize.png</a></td><td><a href="https://docs.os.uk/os-downloads/contextual-or-derived-mapping/1-250-000-scale-colour-raster">https://docs.os.uk/os-downloads/contextual-or-derived-mapping/1-250-000-scale-colour-raster</a></td></tr><tr><td><h3>GB Overview Maps</h3></td><td>Two overview maps of Great Britain at 1:5 000 000 scale for commercial, personal or educational use. An OpenData product.</td><td></td><td><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FxG7cYjACCY2n0iGFWxLX%2FGB-Overview-1.png?alt=media&#x26;token=98278006-dce7-4119-bcf5-5db0207ac882">GB-Overview-1.png</a></td><td><a href="gb-overview-maps">gb-overview-maps</a></td></tr><tr><td><h3>MiniScale</h3></td><td>A small-scale digital map of Great Britain designed for customers requiring high-quality mapping for documents and publications. An OpenData product.</td><td></td><td><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FRuVKfNijcqvOzWLhaNoz%2FMiniScale-1.png?alt=media&#x26;token=0e7833f2-5c1e-4763-bad1-d3df16de51de">MiniScale-1.png</a></td><td><a href="miniscale">miniscale</a></td></tr><tr><td><h3>OS Open Zoomstack</h3></td><td>An open vector basemap showing coverage of Great Britain from a national level, down to street level detail. An OpenData product.</td><td></td><td><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FKNmXKy4iNDjU8ne92Ryo%2FOpen-Zoomstack-Road.png?alt=media&#x26;token=2955728b-e3c9-4104-88ca-b61cd8987a5c">Open-Zoomstack-Road.png</a></td><td><a href="os-open-zoomstack">os-open-zoomstack</a></td></tr><tr><td><h3>OS OpenMap – Local</h3></td><td>A dataset of detailed, street-level mapping of Great Britain, providing one of the most detailed generalised open mapping products available. An OpenData product.</td><td></td><td><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FYcjQ39R8xqBmBqznLEtR%2FOpenMap-Local-4.png?alt=media&#x26;token=b67a1387-ab88-40c7-b160-c7be91ead590">OpenMap-Local-4.png</a></td><td><a href="os-openmap-local">os-openmap-local</a></td></tr><tr><td><h3>OS VectorMap District</h3><p>A open simple vector dataset, designed for creating graphical mapping with a nominal scale of 1:25 000 covering the whole of Great Britain. An OpenData product.</p></td><td></td><td></td><td><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2F3y7E3hqtIvJ4HqCzvX7z%2FVectorMap-District-2.png?alt=media&#x26;token=3a2d5668-3226-4a72-806d-a4ca16981ab4">VectorMap-District-2.png</a></td><td><a href="https://docs.os.uk/os-downloads/contextual-or-derived-mapping/os-vectormap-district">https://docs.os.uk/os-downloads/contextual-or-derived-mapping/os-vectormap-district</a></td></tr><tr><td><h3>OS VectorMap Local</h3><p>A highly detailed, customisable, street-level map, showing fences, building outlines, paths and street names.</p></td><td></td><td></td><td><a href="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2Fuld7V42IKrB8ovpC1JXB%2FVectorMap-Local-1.png?alt=media&#x26;token=cb3e8ae9-d669-4bc9-b7a7-5f479d780447">VectorMap-Local-1.png</a></td><td><a href="https://docs.os.uk/os-downloads/contextual-or-derived-mapping/os-vectormap-local">https://docs.os.uk/os-downloads/contextual-or-derived-mapping/os-vectormap-local</a></td></tr></tbody></table>
