Dalhousie SG53-11 Topographic Map of Australia at 1:250,000 Scale

516 digital topographic maps cover the entire continent of Australia at a scale of 1:250,000. Each standard map sheet depicts an area of approximately 1.5 degrees longitude by 1 degree latitude, containing natural and constructed features like infrastructure, vegetation, and hydrography. The series is produced by Geoscience Australia.

Use Cases

• Extract road and rail infrastructure features for national transportation network analysis.
• Analyze hydrography and 50-meter contour intervals for regional water flow and terrain modeling.
• Identify vegetation coverage and administrative boundaries for land use planning studies.
• Georeference map sheets using UTM projection and GDA94/GDA2020 datum for spatial integration.

Strengths

• Covers the entire Australian continent with 516 map sheets.
• Provides the largest scale (1:250,000) topographic coverage for the continent.
• Contains multiple feature layers including infrastructure, vegetation, hydrography, and contours.

Limitations

• Data is provided in PDF format, requiring extraction for geospatial analysis.
• Map sheets may contain information from surrounding sheets, potentially complicating precise area-based queries.
• Approximately 50 maps cover non-standard areas, introducing inconsistency in sheet boundaries.

Provenance

Source

Geoscience Australia Data

Collection Method

Part of the AUSTopo - Australian Digital Topographic Map Series.

Time Range

null

Freshness

Updated March 2026.

Geography

Australia