{{Short description|Point of known height on a map}} [[File:Two Ocean Pass USGS Topo (cropped).png|thumb|A map of part of Two Ocean Pass, Wyoming, with several spot heights marked with crosses]] [[File:Spot Height 479 - geograph.org.uk - 558201.jpg|thumb|Spot height 479 near Arenig Fach in Snowdonia, Wales, marked by a cairn]] A '''spot height''' is an exact point on a map with an elevation recorded beside it that represents its height above a given datum.<ref>Whittow, John (1984). ''Dictionary of Physical Geography''. London: Penguin, 1984, p. 506. {{ISBN|0-14-051094-X}}. </ref> In the UK this is the Ordnance Datum. Unlike a bench-mark, which is marked by a disc or plate, there is no official indication of a spot height on the ground although, in open country, spot heights may sometimes be marked by cairns. In geoscience, it can be used for showing elevations on a map, alongside contours, bench marks, etc.
== See also == * Surveying * Benchmark (surveying) * Triangulation station
== References == {{Reflist}}
Category:Cartography Category:Geodesy Category:Surveying Category:Vertical position
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