Engineering survey, topographic mapping.
Not intended for high accuracy purposes. See Geodetic Datum 1329 remarks for details on how to directly convert from GeogCRS 4686 "MAGNA-SIRGAS" to GeogCRS 20446 "MAGNA-SIRGAS 2018".
Colombia - mainland onshore west of 4°30'W of Bogota (approximately 78°35'W of Greenwich).
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