> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-downloads/resources/product-resources/end-of-life-product-documentation/os-mastermap-water-network-layer/os-mastermap-water-network-layer-technical-specification/code-lists-and-enumerations/levelofdetailvalue.md).

# LevelOfDetailValue

## **Code list: LevelOfDetailValue**

A calculated value indicating the relative cartographic importance of a WatercourseLink to aid selection and depiction when styling the data.

| Value    | Description                                                                                                                                 |
| -------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
| local    | A watercourse which is important mainly at a local level, recommended for representation only at scales of 1:20 000 and larger.             |
| district | A watercourse which is important at a local and district level, recommended for representation only at scales of 1:50 000 and larger.       |
| regional | A watercourse which is important at a local, district and regional level, recommended for representation at scales of 1:250 000 and larger. |
| national | A watercourse which is important at a national level, recommended for representation at all scales.                                         |


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