> For the complete documentation index, see [llms.txt](https://swatplus.gitbook.io/io-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://swatplus.gitbook.io/io-docs/introduction-1/landuse-and-management/landuse.lum/tile.md).

# tile

The pointer to the tile drain file is a foreign key referencing [name](/io-docs/introduction-1/structural-practices/tiledrain.str/name_tiledb.md) in [**tiledrain.str**](/io-docs/introduction-1/structural-practices/tiledrain.str.md).