> For the complete documentation index, see [llms.txt](https://docs.mapbox.com/help/llms.txt)

# tileset source

A **tileset source** is raw geographic data formatted as [line-delimited GeoJSON](https://en.wikipedia.org/wiki/JSON_streaming#Line-delimited_JSON), or a supported [raster file format](https://docs.mapbox.com/mapbox-tiling-service/raster/supported-file-formats/) and uploaded to Mapbox. Learn more about how line-delimited GeoJSON is used by Mapbox Tiling Service (MTS) in the [Tileset sources guide](https://docs.mapbox.com/mapbox-tiling-service/overview/tileset-sources/#line-delimited-geojson).

Tileset sources are necessary to use [Mapbox Tiling Service](https://docs.mapbox.com/mapbox-tiling-service/) to [create a new vector and raster tileset](https://docs.mapbox.com/api/maps/#create-a-tileset). They are referenced using a tileset source ID. The same tileset source can be used across multiple tilesets.

**Related resources:**

-   Mapbox Tiling Service: [Tileset sources](https://docs.mapbox.com/mapbox-tiling-service/overview/tileset-sources/)
-   API documentation: [Mapbox Tiling Service](https://docs.mapbox.com/api/maps/#mapbox-tiling-service)