# landformpointdescriptionvalue This code list is used in association with the Description attribute which is present within the Landform Point Feature Type. The code list describes the types of land features represented as a point. | Label | Definition | | --------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- | | Adit | A horizontal or near horizontal entrance to a mine. | | Blow Hole | A hole in the land near the shore through which air and water are forced by the rising tide or wave action. | | Burial Mound | An ancient burial mound, being of historical interest. | | Cave | A subterranean chamber, usually natural, with an entrance from the surface. | | Collapsed Shaft | A collapsed or partially filled-in shaft. | | Entrance To Natural Arch | The opening leading to an arch-like rock formation, caused by natural erosion. | | Grotto | A cavern, usually artificial, that contains attractively shaped or coloured rocks and is commonly part of formal gardens. | | Historic Cave | A subterranean chamber, usually natural, with an entrance from the surface, that is of historical interest. | | Mound Of Earth As Boundary Marker | A low hill, either natural or artificial, indicating the proximity of an administrative boundary alignment. | | Natural Arch | An arch-like rock formation, caused by natural erosion. | | Pot Hole | A natural hole caused by the erosion of underlying limestone. | | Shake Hole | A steep-sided hole or funnel-shaped depression in the ground, which formed as the result of subsidence over underground cavities. | | Swallow Hole | A hole into which a stream empties, usually in limestone areas. | --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.os.uk/osngd/code-lists/code-lists-overview/landformpointdescriptionvalue.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.