Mines Subsidence District Boundaries for NSW, GDA2020 Coordinate System

Mine Subsidence Districts define the area of control of the Mine Subsidence Board, which administers the Mine Subsidence Compensation Act, 1961. The dataset is maintained by Subsidence Advisory NSW and is part of the NSW Administrative Boundaries Theme within the Foundational Spatial Data Framework. Features are positioned in alignment with the extents of the Land Parcel and Property dataset.

Use Cases

• Mapping areas under mining subsidence regulation based on the defined district boundaries.
• Integrating administrative boundary data with cadastral parcel datasets for land management.
• Analyzing the jurisdictional scope of the Mine Subsidence Board for legal or compensation purposes.

Strengths

• The dataset maintains positional alignment with the Lot and Property digital datasets.
• It is part of the updated GDA2020 Foundational Spatial Data Framework, improving accuracy and compatibility with modern positioning technologies.
• The positional accuracy is defined as within 0.5mm at map scale for 90% of well-defined points, with specific tolerances for scales from 1:500 to 1:250,000.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Subsidence Advisory NSW.

Collection Method

Data is maintained from information sourced from Subsidence Advisory NSW and was captured by digitising the best available cadastral mapping.

Freshness

The service was updated to GDA2020, and the record was last updated on 2026-05-18.

Geography

New South Wales, Australia.