> For the complete documentation index, see [llms.txt](https://docs.mapbox.com/mapbox-gl-js/llms.txt)
# Add 3D terrain to a map
This example adds 3D terrain to a map using [`setTerrain`](https://docs.mapbox.com/mapbox-gl-js/api/map/#map#setterrain) with a [`raster-dem` source](https://docs.mapbox.com/style-spec/reference/sources/#raster-dem).
It uses [`exaggeration`](https://docs.mapbox.com/style-spec/reference/terrain/#exaggeration) to exaggerate the height of the terrain.
> Example code:
**JavaScript**
```html
Add 3D terrain to a map
```
**React**
```jsx
import React, { useEffect, useRef } from 'react';
import * as mapboxgl from 'mapbox-gl/esm';
import 'mapbox-gl/dist/mapbox-gl.css';
const MapboxExample = () => {
const mapContainerRef = useRef();
const mapRef = useRef();
useEffect(() => {
mapRef.current = new mapboxgl.Map({
// TO MAKE THE MAP APPEAR YOU MUST
// ADD YOUR ACCESS TOKEN FROM
// https://account.mapbox.com
accessToken: 'YOUR_MAPBOX_ACCESS_TOKEN',
container: 'map',
zoom: 14,
center: [-114.26608, 32.7213],
pitch: 80,
bearing: 41,
style: 'mapbox://styles/mapbox/standard-satellite'
});
mapRef.current.on('style.load', () => {
mapRef.current.addSource('mapbox-dem', {
type: 'raster-dem',
url: 'mapbox://mapbox.mapbox-terrain-dem-v1',
tileSize: 512,
maxzoom: 14
});
mapRef.current.setTerrain({ source: 'mapbox-dem', exaggeration: 1.5 });
});
}, []);
return ;
};
export default MapboxExample;
```
## More Examples
View some examples of our other style features here:
> **Related content (example): [Rain Example Mapbox GL JS](https://docs.mapbox.com/mapbox-gl-js/example/rain/)**
>
> This example adds a rain effect to the map by setting the style's rain property. You can adjust the intensity, direction, color, and more of the precipitation presented on screen.
> **Related content (example): [Snow Example Mapbox GL JS](https://docs.mapbox.com/mapbox-gl-js/example/snow/)**
>
> This example adds a snow effect to the map by setting the style's snow property. You can adjust the intensity, direction, color, and more of the precipitation presented on screen.