National Base Map: Greyscale Topography for Australia and External Territories

A seamless greyscale topographic map service covering all of Australia, including Cocos (Keeling) Islands, Christmas Island, Norfolk Island, and Lord Howe Island. The service is produced for the National Map project, combining Geoscience Australia data at smaller scales with OpenStreetMap data at larger scales. It contains layer scale dependencies and was last updated on 2026-05-26.

Use Cases

• Create basemaps for thematic overlays based on the seamless greyscale topographic data.
• Analyze topographic features across Australia and its external territories based on the multi-scale service.
• Develop web mapping applications for the National Map project based on the provided MapServer service.

Strengths

• Covers the entire landmass of Australia and its external territories, providing national-scale coverage.
• Integrates data from authoritative (Geoscience Australia) and community (OpenStreetMap) sources for different map scales.

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

Geoscience Australia Data and OpenStreetMap

Collection Method

Produced for the National Map project, integrating multi-source geospatial data.

Freshness

Last updated 2026-05-26 19:25:43.761793; freshness should be verified.

Geography

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