# loadTile(at:result:) Loads the specified tile asynchronously. ``` func loadTile(at path: MKTileOverlayPath, result: @escaping @Sendable (Data?, (any Error)?) -> Void) ``` ## Parameters `path` The path structure that identifies the specific tile you want. This structure incorporates the tile’s x-y coordinate at a given zoom level and scale factor. `result` The completion block to call when the tile data is available. The method can execute this block on any queue and takes the following parameters: - The `tileData` parameter contains the raw data that loads from the corresponding image file. You can use this data to initialize an image object. If an error occurs, this parameter is `nil`. - The `error` parameter contains an error object if there is a problem loading the tile image. If no errors occur, this parameter is `nil`. ## Discussion The default implementation of this method uses the [`url(forTilePath:)`](/documentation/MapKit/MKTileOverlay/url(forTilePath:)) method to retrieve the URL for the specified tile and then loads that tile into memory asynchronously using a object. The specified tile may be located either on the local file system or on a remote server. Subclasses may override this method and implement their own custom tile-loading behavior. When a tile overlay renderer (that is, an instance of [`MKTileOverlayRenderer`](/documentation/MapKit/MKTileOverlayRenderer)) needs to display tiles, it uses this method to request the data for each tile. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)