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The Surveyor-General of Victoria (SGV) Geodesy division provides access to an accurate and reliable system of positioning across Victoria. This is delivered through the ongoing maintenance and enhancement of positioning infrastructure and information services.

These systems enable precise positioning and the alignment of spatial information with the national coordinate reference system, namely the Geocentric Datum of Australia (GDA2020 or GDA94) and Australian Height Datum (AHD).

Major services provided by SGV Geodesy include:

Products and servicesDimensions
Primary positioning infrastructure and data services (GPSnet)Integrated, statewide network of Global Navigation Satellite System (GNSS) Continuously Operating Reference Stations (CORS).
Survey control infrastructure and informationStatewide network survey control marks.
Survey Mark Enquiry Service (SMES)Interactive online application that provides free access to survey mark information.
High-precision surveying servicesSpecialised surveying to extend the survey control mark network and monitor changes in physical features.
Survey equipment calibration servicesFacilities for surveyors to calibrate distance measuring equipment to improve accuracy with traceability to the national standard for length.
Advisory servicesSpecialist advice and support in relation to positioning infrastructure and information.
Stakeholder engagement and educationCollaboration with stakeholders to ensure positioning infrastructure and information services meet their needs. Educational presentations and promotion of geodesy and positioning.


Our vision is to provide accurate, reliable and accessible positioning for Victoria.

Strategy for Victoria's positioning system 2021 - 2025

This strategy outlines our priorities in maintaining and enhancing Victoria's positioning infrastructure and information services. SGV Geodesy will continue to support precise positioning and the seamless integration of spatial information to ensure business and the community get maximum benefit from advances in positioning.

 Infographic of Strategy for Victoria’s Positioning Systems 2021 to 2025
Infographic of Strategy for Victoria’s Positioning Systems 2021 - 2025

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Page last updated: 18/12/20