Tag:man_made=survey_point

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Public-images-osm logo.svg man_made = survey_point
Trig Point near Wootton Wawen.jpg
Description
A triangulation pillar, geodetic vertex, or other piece of fixed equipment used by topographers.
Used on these elements
may be used on nodesshould not be used on waysshould not be used on areasuse on relations unspecified
Useful combination
Status: In use

A survey point is a triangulation pillar, geodetic vertex, or other piece of fixed equipment used by topographers. An example of these are DGPS radio stations. These points are normally in a fixed location and of a known altitude used for the old fashioned surveying.

See also Wikipedia-16px.png Triangulation station and Wikipedia-16px.png Benchmark (surveying).

How to map

Add a node at the location of the trig point and use the man_made=survey_point. You can also add a name using name=*, its bracket number with ref=*, and its elevation using ele=* (mind the height reference system!).

Possible Rendering

Man made survey point.svg suggested by User:Chrisana13

example bracket on a UK trig point, tag with ref=S8325

Additional tags