bn:00640947n
Noun Concept
Categories: Articles with short description, Surveying and geodesy markers
EN
triangulation station  geodesic basis  geodesic vertex  Sankakuten  Triangulation mark
EN
A triangulation station, also known as a trigonometrical point, and sometimes informally as a trig, is a fixed surveying station, used in geodetic surveying and other surveying projects in its vicinity. Wikipedia
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