National Base Map: Greyscale Topographic Imagery for Australia and External Territories

A seamless topographic greyscale mapping service for the whole of Australia, including the external territories of Cocos (Keeling) Islands, Christmas Island, Norfolk Island, and Lord Howe Island. The service is produced for the National Map project and combines Geoscience Australia data at smaller scales with OpenStreetMap data at larger scales. It was last updated on 2026-06-05.

Use Cases

• Create thematic maps based on the seamless greyscale topographic base layer.
• Perform spatial analysis using the integrated data from Geoscience Australia and OpenStreetMap.
• Develop web mapping applications via the WMTS service endpoint for Australia and its external territories.

Strengths

• Covers the entire landmass of Australia and its external territories.
• Integrates authoritative Geoscience Australia data with crowd-sourced OpenStreetMap data.
• Service was updated on 2026-06-05, suggesting recent maintenance.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Australian Ocean Data Network, via data_gov_au.

Collection Method

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

Freshness

Last updated 2026-06-05 06:18:48.585799; freshness should be verified.

Geography

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