> For the complete documentation index, see [llms.txt](https://docs.radiantdrift.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.radiantdrift.com/geospatial/elevation.md).

# Elevation

{% hint style="info" %}
This API is available on the **Pro** plan or higher
{% endhint %}

Query the elevation above sea level for a given coordinate or coordinates with the `/elevation` end point. Post an array of one or more lat/lng coordinates to obtain the elevation above sea level at the given point.

The end point can return three format response types, based on the `format` query parameter value:

* geojson: a valid GeoJSON document
* array: an array of elevations not including the corresponding lat/lng coordinate (array order is preserved in the response)
* topocentric-array: an array of \[lat, lng, elevation] values

### Data Source

Elevation data is obtained from the public [Terrain Tiles](https://registry.opendata.aws/terrain-tiles/) data set. 

{% openapi src="<https://api.radiantdrift.com/openapi/0.18.4.json>" path="/elevation" method="post" %}
<https://api.radiantdrift.com/openapi/0.18.4.json>
{% endopenapi %}

### Attribution

Elevation data courtesy of:

* ArcticDEM terrain data DEM(s) were created from DigitalGlobe, Inc., imagery and funded under National Science Foundation awards 1043681, 1559691, and 1542736;
* Australia terrain data © Commonwealth of Australia (Geoscience Australia) 2017;
* Austria terrain data © offene Daten Österreichs – Digitales Geländemodell (DGM) Österreich;
* Canada terrain data contains information licensed under the Open Government Licence – Canada;
* Europe terrain data produced using Copernicus data and information funded by the European Union - EU-DEM layers;
* Global ETOPO1 terrain data U.S. National Oceanic and Atmospheric Administration
* Mexico terrain data source: INEGI, Continental relief, 2016;
* New Zealand terrain data Copyright 2011 Crown copyright (c) Land Information New Zealand and the New Zealand Government (All rights reserved);
* Norway terrain data © Kartverket;
* United Kingdom terrain data © Environment Agency copyright and/or database right 2015. All rights reserved;
* United States 3DEP (formerly NED) and global GMTED2010 and SRTM terrain data courtesy of the U.S. Geological Survey.


---

# Agent Instructions
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## 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.radiantdrift.com/geospatial/elevation.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.

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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.