National Base Map: Greyscale Topographic Map of Australia and Territories

National Base Map - GreyScale MapServer provides seamless topographic greyscale mapping for all of 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 2026-04-30.

Use Cases

• Create basemaps for thematic overlays based on the seamless greyscale topographic data.
• Perform spatial analysis at varying scales based on the layer scale dependencies.
• Develop web mapping applications for Australia using the provided MapServer service.
• Integrate multi-source topographic data for regional planning based on the combined Geoscience Australia and OpenStreetMap layers.

Strengths

• Covers the entire landmass of Australia, including external territories such as Cocos (Keeling) Islands and Christmas Island.
• Integrates data from two authoritative sources: Geoscience Australia and OpenStreetMap.
• Service was updated on 2026-04-30, suggesting recent maintenance.

Limitations

• Description metadata is limited; actual data quality and layer specifics require manual inspection after accessing the service.
• The service format is HTML (MapServer), which may require specific GIS tools or libraries for programmatic use beyond visualization.

Provenance

Source

Geoscience Australia Data, OpenStreetMap

Collection Method

Produced for the National Map project, integrating data from Geoscience Australia and OpenStreetMap.

Freshness

Last updated 2026-04-30 14:44:29.252536; freshness should be verified.

Geography

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