National Base Map: Greyscale Topographic Imagery for Australia and Territories

Seamless greyscale topographic mapping for the whole of Australia, including external territories like Christmas Island and Norfolk 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 contains layer scale dependencies and is delivered as a WMTS service.

Use Cases

• Create reference basemaps for thematic mapping based on the seamless topographic coverage.
• Perform spatial analysis on Australian geography based on the integrated Geoscience Australia and OpenStreetMap data.
• Develop web mapping applications for the National Map project based on the WMTS service format.

Strengths

• Covers all of Australia and its external territories, providing national completeness.
• Integrates authoritative Geoscience Australia data with detailed OpenStreetMap data for multi-scale coverage.
• Designed for the National Map project, indicating a specific use-case alignment.

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

Collection Method

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

Freshness

Last updated 2026-04-30 13:02:17.300922; freshness should be verified.

Geography

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