There are about 5,500 Geodetic Survey Control Stations in Hong Kong, including trigonometric stations, bench marks and traverse stations. The coordinates of these stations can be widely adopted for positioning tasks. The Database files (xls/xml files) contains the core information of the stations, and the Control Stations Index (kml/gml files) can be used for visualization in web maps / GIS systems. Coordinates in the Control Stations Index are approximate and should be used for reference only. Please refer to the corresponding Database files for the surveyed coordinates.
This Application Programming Interface (API) is developed by the DATA.GOV.HK team with the purpose to provide software and application developers with different perspectives and means on using the original dataset(s). The resulted subset(s) of data delivered via the API may not carry the complete information that is provided in the original dataset(s) from the providing agencies. One should always make reference to the original dataset(s) for a comprehensive application.