Ajana SG50-13: Australian Topographic Map at 1:250,000 Scale

516 maps comprise the AUSTopo series, the largest-scale topographic map series covering the entire Australian continent. Each standard map covers approximately 150 by 110 kilometers, showing natural and constructed features like infrastructure, vegetation, hydrography, and 50-meter contours. Geoscience Australia produces these maps, which use GDA94/GDA2020 datum and UTM projection, with the last update recorded 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 land-use studies based on vegetation and hydrography features.
• Creating regional base maps for GIS projects based on standardized sheet coverage.

Strengths

• Covers the entire Australian continent with 516 map sheets.
• Provides data at a consistent 1:250,000 scale, the largest scale for full continental coverage.
• Includes multiple coordinate datums (GDA94, GDA2020) and AHD for vertical reference.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is provided in PDF format, which may require conversion for direct geospatial analysis.
• The description notes map sheets may contain information from surrounding sheets, which could affect precise boundary analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Published digital topographic map series.

Time Range

null

Freshness

Last updated 2026-03-25 18:15:50.314290; freshness should be verified.

Geography

Australia