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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. The nomenclature varies regionally: they are generally known as trigonometrical stations or triangulation stations in North America, trig points in the United Kingdom, trig pillars in Ireland, trig stations or trig points in Australia and New Zealand,[1] and trig beacons in South Africa.
- ^ "Surveying for Mapping — Section 1, Introduction". Intergovernmental Committee on Surveying and Mapping. Commonwealth of Australia. Archived from the original on 3 November 2012. Retrieved 7 November 2012.