> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-detailed-path-network/os-detailed-path-network-overview/product-supply.md).

# Product supply

{% hint style="warning" %}
Please note that the October 2025 release was the final release of the OS Detailed Path Network product; more information about the product withdrawal timeline and the recommended product migration pathway is available from the [End of Life Notice – Detailed Path Network](/os-downloads/resources/product-resources/end-of-life-product-notices/end-of-life-notice-os-detailed-path-network.md) page.
{% endhint %}

## Available formats <a href="#bookmark22" id="bookmark22"></a>

The OS DPN product is available in the following formats:

* Data: Geography Markup Language (GML) v3.2 Simple Features, compressed using gzip
* Vector: GeoPackage file, zipped using gzip
* Vector: Vector tiles (MBTiles) file, zipped using gzip

{% hint style="info" %}

* For information on how to open, use and understand a GeoPackage dataset, please refer to our [‘Getting Started with GeoPackage’ guide](https://docs.os.uk/os-downloads/getting-started/getting-started-with-geopackage); the format's key features and benefits are also covered in that guide. Further detailed information on GeoPackage can be taken from the [GeoPackage website](https://www.geopackage.org/).
* For information on how to install vector tiles (MBTiles) and the format's key features and benefits, please refer to our [‘Getting Started with Vector Tiles’ guide](https://docs.os.uk/os-downloads/getting-started/getting-started-with-vector-tiles).
  {% endhint %}

## Product supply mechanism <a href="#bookmark23" id="bookmark23"></a>

The OS DPN product is supplied as an online download only. You can download data in various formats from the [OS Data Hub](https://osdatahub.os.uk/).

## File sizes <a href="#bookmark24" id="bookmark24"></a>

For GML and GeoPackage product formats, one file is supplied for each National Park (i.e. you will receive 15 files when ordering the product in one of these formats).

The vector tiles product format is supplied as a single file that contains all National Parks. Each file will contain up to three feature types.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-detailed-path-network/os-detailed-path-network-overview/product-supply.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.