> 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/ov_mann.md).

# ov\_mann

The pointer to the overland Manning's n database is a foreign key referencing [name](/io-docs/introduction-1/landuse-and-management/ovn_table.lum/name_ovn.md) in [ovn\_table.lum](/io-docs/introduction-1/landuse-and-management/ovn_table.lum.md).