National Base Map: Greyscale Topographic Mapping for Australia

Australia and its external territories receive seamless topographic greyscale mapping coverage. 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 2026-05-05.

Use Cases

• Create web-based topographic maps based on the seamless national coverage.
• Integrate multi-scale map layers into applications based on the layer scale dependencies.
• Visualize Australian geography for planning or analysis based on the greyscale topographic data.

Strengths

• Provides mapping coverage for the whole of Australia, including Cocos (Keeling) Islands, Christmas Island, Norfolk Island, and Lord Howe Island.
• Combines authoritative data from Geoscience Australia with community-sourced data from OpenStreetMap.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network

Freshness

Last updated 2026-05-05 05:14:17.613013; freshness should be verified.

Geography

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