NSW Survey Marks with GDA94 Coordinates and MultiCRS Support

A geospatial service providing GDA94 coordinates, heights, and related information for survey marks that form the official State control survey network in New South Wales, Australia. The data is sourced from SCIMS and is maintained by Spatial Services (DCS). The service supports requests in multiple Coordinate Reference Systems (GDA2020, GDA94, WGS 84-aligned-to-GDA2020).

Use Cases

• Perform coordinate transformations for survey data based on the built-in server-side transformations between GDA94, GDA2020, and WGS 84.
• Access official survey mark information for legal traceability in cadastral surveys, as referenced by the SCIMS Online system.
• Integrate survey control points into GIS environments that require alignment with different spatial references.
• Analyze the distribution and types of permanent survey marks across New South Wales.

Strengths

• Provides official State control survey network data with legal traceability for cadastral surveys.
• Supports multiple Coordinate Reference Systems (GDA2020, GDA94, WGS 84-aligned-to-GDA2020) with built-in server-side transformations.
• The service controls numerical output precision to mirror the SCIMS Online system.

Limitations

• GDA94 coordinates are no longer maintained and have been superseded by GDA2020 versions.
• Column-level documentation is absent; field semantics must be inferred after access.
• Row count and data volume are unknown, which may limit suitability assessment.

Provenance

Source

Spatial Services (DCS), New South Wales Government.

Collection Method

Reported in the Survey Control Information Management System (SCIMS).

Freshness

Last updated 2026-05-17 21:51:10.611815; freshness should be verified as the data is superseded.

Geography

New South Wales, Australia.