Australian Topographic Map at 1:250,000 Scale

516 digital maps cover the entire continent of Australia at a 1:250,000 scale, where 1cm represents 2.5km on the ground. Each standard map sheet covers an area of approximately 1.5 degrees longitude by 1 degree latitude, depicting natural and constructed features like roads, vegetation, and hydrography.

Use Cases

• Extract road and rail infrastructure features for national transportation network analysis.
• Analyze hydrography and 50m interval contours for watershed modeling and flood risk assessment.
• Identify vegetation coverage and administrative boundaries for land-use planning studies.
• Georeference map sheets using GDA94/GDA2020 coordinates and UTM projection for GIS 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 datums (GDA94, GDA2020, AHD) and UTM projection for precise geospatial work.

Limitations

• Data is provided as static PDF files, requiring extraction for analytical use.
• Map sheets may contain information from surrounding sheets, potentially complicating precise area-based analysis.
• 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

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Freshness

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Geography

Australia