# Example: DeckGL Overlay This example demonstrates using [deck.gl](https://deck.gl) to render a data overlay on top of react-map-gl. ## Usage To run this example, you need a [Mapbox token](http://visgl.github.io/react-map-gl/docs/get-started/mapbox-tokens). You can either set it as `MAPBOX_TOKEN` in `src/app.js`, or set a `MapboxAccessToken` environment variable in the command line. ```bash npm i npm run start ```