National Base Map: Greyscale Topographic Map Service for Australia

National Base Map - GreyScale MapServer provides seamless greyscale topographic mapping for Australia and its external territories. The service is produced for the National Map project, combining Geoscience Australia data at smaller scales with OpenStreetMap data at larger scales. It was last updated on 2026-06-09.

Use Cases

• Create basemaps for thematic overlays based on the seamless topographic greyscale mapping.
• Perform spatial analysis at varying scales based on the layer scale dependencies.
• Develop web mapping applications for Australia using the provided MapServer service.
• Integrate authoritative topographic data with community-sourced OpenStreetMap data for comprehensive coverage.

Strengths

• Covers the whole of Australia, including external territories like Cocos (Keeling) Islands and Christmas Island.
• Integrates data from authoritative (Geoscience Australia) and community (OpenStreetMap) sources.
• Last updated 2026-06-09 04:38:39.967000.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic or source bias inherent to the contributing data sources.

Provenance

Source

Geoscience Australia Data and OpenStreetMap

Collection Method

Produced for the National Map project, combining data from two sources.

Freshness

Last updated 2026-06-09 04:38:39.967000.

Geography

Australia, Cocos (Keeling) Islands, Christmas Island, Norfolk Island, Lord Howe Island