# Map features See component-specific docs at [CoordinateSelectionMap](./CoordinateSelectionMap.md) and [LocalitiesMap](./LocalitiesMap.md) The map features use the React Leaflet package and OpenStreetMap. ### Dev notes - OSM Tile Usage Policy! > for production: Tile Usage Policy https://operations.osmfoundation.org/policies/tiles/ of OpenStreetMap if you’re going to use the tiles in production. > OpenStreetMap data is free for everyone to use. Our tile servers are not. > Because OpenStreetMap data is free, many other organisations provide map tiles made from OSM data. If your project doesn’t meet our requirements, you can get OSM-derived map tiles elsewhere. - Make sure the map container has a defined height, for example by setting it in CSS: #map { height: 180px; }