Nullagine SF51-05: Australian Topographic Map at 1:250,000 Scale

516 maps comprise the AUSTopo series, the largest-scale topographic map collection covering the entire Australian continent. Each standard map sheet covers approximately 150 by 110 kilometers, showing natural and constructed features like roads, vegetation, hydrography, and 50-meter contours. Geoscience Australia produces these maps in digital PDF format with coordinates in GDA94/GDA2020 datums and UTM projection.

Use Cases

• Terrain analysis and elevation modeling based on 50-meter contour intervals
• Infrastructure and land-use planning based on road, rail, and administrative boundary data
• Environmental and hydrological studies based on vegetation and hydrography features
• Map sheet edge matching and spatial data integration based on information from surrounding sheets

Strengths

• Covers the entire Australian continent at a consistent 1:250,000 scale
• Comprises 516 map sheets, including approximately 50 special maps for non-standard areas
• Includes multiple coordinate datums (GDA94, GDA2020) and AHD for vertical reference

Limitations

• Data is provided as PDF files, which may require conversion for direct geospatial analysis
• Column-level documentation and sample data are unavailable, limiting pre-download assessment
• The map may contain information from surrounding sheets, which could affect precise boundary analysis

Provenance

Source

Geoscience Australia Data

Collection Method

Part of the official AUSTopo - Australian Digital Topographic Map Series

Time Range

null

Freshness

Last updated 2026-03 15:40:25.728810

Geography

Australia, specifically the Nullagine SF51-05 map sheet area