Dumbleyung SI50-07: AUSTopo 1:250,000 Scale Digital Topographic Map

Geoscience Australia Data publishes the AUSTopo - Australian Digital Topographic Map Series, which covers the entire continent at a 1:250,000 scale. The series comprises 516 standard maps, each covering approximately 150 by 110 kilometers, and about 50 special maps for non-standard areas. It contains natural and constructed features including infrastructure, vegetation, hydrography, and 50-meter contours, last updated in March 2026.

Use Cases

• Terrain analysis and elevation modeling based on 50-meter contour intervals.
• Infrastructure planning and routing based on road and rail network data.
• Environmental and hydrological studies based on hydrography and vegetation features.
• Creating regional base maps for land management based on administrative boundaries and localities.

Strengths

• Covers the entire Australian continent at a consistent 1:250,000 scale, the largest scale for full coverage.
• Comprises 516 standard maps, providing systematic spatial coverage.
• Includes multiple coordinate datums (GDA94, GDA2020, AHD) and a UTM projection for geospatial accuracy.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale computational projects.
• Data may reflect geographic bias inherent to data_gov_au, focusing on Australian features.

Provenance

Source

Geoscience Australia Data

Collection Method

Part of the published AUSTopo - Australian Digital Topographic Map Series.

Freshness

Last updated 2026-03-25 17:18:24.346897; freshness should be verified.

Geography

Australia, specifically the Dumbleyung SI50-07 map sheet area.