National Base Map: Greyscale Topographic Imagery for Australia and Territories

A seamless greyscale topographic map service covering the entirety 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 2026-04-20.

Use Cases

• Providing a topographic basemap for thematic data visualization based on the seamless national coverage.
• Supporting land-use planning and analysis based on the integrated topographic features.
• Developing location-based services and applications based on the multi-scale, layer-dependent WMTS service.

Strengths

• Covers the whole of Australia, including external territories like Christmas Island and Norfolk Island.
• Integrates authoritative data from Geoscience Australia with crowd-sourced data from OpenStreetMap.
• Service was updated on 2026-04-20, suggesting recent maintenance.

Limitations

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

Provenance

Source

Geoscience Australia Data

Collection Method

Combined from Geoscience Australia and OpenStreetMap sources.

Time Range

null

Freshness

Last updated 2026-04-20 01:02:13.697895; freshness should be verified.

Geography

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