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Trig point facts for kids

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Trigonometrical station
A trigonometrical station in Hong Kong
Cabeza Mediana cima
A trigonometrical station in the Sierra de Guadarrama, Spain

A triangulation station, also known as a triangulation pillar, trigonometrical station, trigonometrical point, trig station, trig beacon or trig point, and sometimes informally as a trig, is a fixed surveying station, used in surveying. The names of triangulation stations vary regionally; they are generally known as trigonometrical stations in North America, trig points in the United Kingdom, New Zealand and Australia, and trig beacons in South Africa; triangulation pillar is the more formal term for the concrete columns found in the UK.

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